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Controller User Manual

1. Cc O O AOA OA AOA O OG cc c cB c3 coc C2 C2 C2 cC tJ cJ cc Cc Ij fa _ _ _ _ _ _ _ cc Cc B AOA O OA O AOA O O cc c c G3 0 0 g 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Fig 35 MAP correction map If autoadaptation is active but it is not desired in certain ranges of engine operation it is possible to deactivate such ranges in the autoadaptation process Select an area of the map with a mouse and click the right button after selection A context menu with Autoadaptation lock and Autoadaptation unlock commands is displayed Locked areas are marked with grey correction values Controllers for 6 and 8 cylinders STAG 300 QMAX PLUS offer two MAP correction maps one for each bank The maps can be switched only with B1 B2 buttons under the map clearing button If the Auto stop is checked
2. 6 1 5 Mounting the controller STAG 4 6 1 6 Selection of pressure 6 1 7 Selection of injector nozzles 7 2 The AC STAG diagnostic 7 ____________________ 7 LARA c 10 E E EEEN _ ____ _6__ _6___ _ ____________ 10 GONO af cl 2 iho ol ee ee 12 2 5 Signals ingectors LED 16 ZION rE 18 NAR IS CIM OG COD O oera 19 om cd 19 2 8 1 Errors of the gas controller 20 2 8 2 Gas CONV ONE SOC PERDERE ITO 22 2 8 3 Ero aa 23 RON dio P 24 2 9 1 M M 27 ENT Fa
3. J G _ 2 _ a oo pp 5 oO oO 5 5 ocococcococcoocooccooooco 65 gt s J _ 2 a a 5 Cc oO 5 oO c5 5 Q0 cO 49 49 b 43 43 459 49 D 5 s 2 ttt 5 63 6 s eee We Se we e Fig 26 Petrol portion Map values specify the percentage of petrol while running on gas in a given operating curve point The actual petrol post injection time is based on the map values related to the petrol injection time in a given operating curve point Example 2096 for the 10ms column means 2ms petrol extra injection AC S A all rights reserved Under penalty of law and or liability claims it is forbidden to copy publish distribute make available and or use in any way all or any part of information contained within this document in particular photographs drawings illustrations trademarks etc 29 www ac com pl info ac com pl AC S A
4. ff f Pin No 2C in ORANGE Pin No 15 in OBD connector 4 gt STAG 4 Q BOX connector Pin No 3C in ORANGE GREEN VES Pin No 7 in connector 4 STAG 4 Q BOX connector ORANGE GREEN FRONT VIEW ISO 15765 YELLOW BLACK Pin No 3B YELLOW BLACK ug Pin No 14 OBD connector STAG 4 Q BOX connector 3 Pin No 2B in AM Pn No 6 in connector STAG 4 Q BOX connector BLACK Fig 2a Wiring diagram for STAG 4 QBOX PLUS connection to OBD interface AC S A all rights reserved Under penalty of law and or liability claims it is forbidden to copy publish distribute make available and or use in any way all or any part of information contained within this document in particular photographs drawings illustrations trademarks etc 5 www ac com pl info ac com pl STAG Tes autogas systems AC S A ul 42 Pulku Piechoty 50 15 181 Biatystok Poland tel 48 85 743 81 00 fax 48 85 653 93 83 1 3 Semi sequential control PETROL INJECTORS LPG INJECTORS BLUE RED YELLOW 12V YELLOW GREY YELLOW BLACK BLUE RED 412V GREEN GREY GREEN BLACK BLUE RED 12V RED GREY com 0 BLUE RED 12V BLUE GREY BLUE BLACK Fig 3 Semi sequential control lay
5. ATTENTION Description and connection dia n PETROL INJECTORS LPG or CNG INJECTORS ATTENTION princi a pail reped diese ATTENTION section of controller configuration program 265 VELLOW UE and programming m EE Proper pond placed ne 4 YELLOW BLACK GREY YELLOW E 15 RED Ztacze m P GREEN BLUE RED We E lt 42V TT ru A m GREEN BLACK 2 OREY GREEN I R 80 5788 i ij Lae RR NOT CONNECTED LPG LEVEL m e 13 YELLOW BLACK ORANGE BATTERY L 1 _ 2 RED BLACK 77 GREY RED ORANGE gt m s WATER WHITE O E LPG LEVEL L SENSOR be BLUE m BLUE RED T U 4 2 CT 04 2K ora SED supe BLUE BLACK l GREY BLUE A EID MARE BLUE BLACK ZEE EC IUE 6 MULTI VALVE TO INLET MANIFOLD GAS WKTER OUTPUT REDUCER TITER PRESSURE and TEMPERATURE SENSOR Fig 2 STAG 4 QBOX PLUS controller installation layout diagram FRONT VIEW 1 ISO 9141 ISO 14230 9 16
6. AC S A all rights reserved Under penalty of law and or liability claims it is forbidden to copy publish distribute make available and or use in any way all or any part of information contained within this document in particular photographs drawings illustrations trademarks etc 32 R www ac com pl info ac com pl AC S A ul 42 Putku Piechoty 50 15 181 Biatystok Poland tel 48 85 743 81 00 fax 48 85 653 93 83 Wes AUTOGAS systems p Fig 32 Petrol map acquisition state x _______ 3 000 ___ cm Fig 33 Gas map acquisition state AC S A all rights reserved Under penalty of law and or liability claims it is forbidden to copy publish distribute make available and or use in any way all or any part of information contained within this document in particular photographs drawings illustrations trademarks etc 33 www ac com pl info ac com pl AC S A ul 42 Pulku Piechoty 50 15 181 Biatystok Poland tel 48 85 743 81 00 fax 48 85 653 93 83 STAG autogas systems 2 18 Injection time deviation map The D tab allows the viewer to view the difference between Petrol and Gas maps Differences between
7. www ac com pl info ac com pl AC S A ul 42 Putku Piechoty 50 15 181 Biatystok Poland tel 48 85 743 81 00 fax 48 85 653 93 83 STAG autogas systems 1 7 Selection of injector nozzles Injector nozzles diameter must also be matched to the given car engine power see the table below Power per cylinder is engine power divided by number of cylinders in the engine Nozzle diameter mm Power per cylinder range KM reducer 1 bar 17 18 1 16 J 00 1 9 2 2 17 28 The above rough values may in some cases not correspond to actual values 2 The AC STAG diagnostic program 2 1 Controller computer connection Using a RS USB or Bluetooth link connect the vehicle installed STAG 4 QBOX BASIC controller with a PC computer on which the Ac Stag diagnostic program is to be run Turn the vehicle ignition switch ON to supply the controller with power before launching the program This step is required since no communnication with the controller is possible while it is in sleep mode into which it is automatically turned about 10 minutes after its power is disconnected As soon as the program is started the controller links with it provided the correct COM serial port is selected Successful communication is confirmed by the Status No ignition switch Status Waiting for gas Status Petrol or Status Gas message displayed at the bottom left corner of the program screen Parameter
8. ISA3 autoadaptation mode areas with successful autoadaptation will be locked automatically 2 20 OBDII EOBD reader STAG 4 QBOX PLUS is equipped with an integrated reader of parameters and faults based on the OBDII EOBD interface It is not necessary to connect an external adapter all required circuits are integrated with the controller board The tool supports the following standards 150 15765 ext std 250 500Kbits commonly referred to as CAN 150 14230 5Baud Fast init 150 9141 commonly referred to as K line The reader is initiated by selecting the reader option on the gas settings tab If the controller operates in auto mode it will attempt to connect to the OBDII EOBD diagnostic system upon activation of the ignition switch AC S A all rights reserved Under penalty of law and or liability claims it is forbidden to copy publish distribute make available and or use in any way all or any part of information contained within this document in particular photographs drawings illustrations trademarks etc 35 www ac com pl info ac com pl AC S A ul 42 Pulku Piechoty 50 15 181 Biatystok Poland tel 48 85 743 81 00 fax 48 85 653 93 83 STAG autogas systems f OBD reader A value 3 10 94 9 9 2 34 0 898 rpm O2 S1B1 Tr 0 68 V 10 94 Connected Fig 36 OBD2 EOBD reader The reader window can display
9. R TAG autogas systems Controller User Manual STAG 4 GBOX BASIC STAG 4 GBOX PLUS Eg 67R 01 4903 8 1108 00 4904 information contained in this manual is also available in the diagnostics software help system and at the www ac com pl website ver 1 6 2014 11 17 AC S A 15 181 Biatystok ul 42 Putku Piechoty 50 t c AQ QOL Ca Cd LAQ QE CE OR Q tel 48 OO 43 51 UU Tax 46 85 653 93 83 www ac com pl info ac com pl AC S A all rights reserved Under penalty of law and or liability claims it is forbidden to copy publish distribute make available and or use in any way all or any part of information contained within this document in particular photographs drawings illustrations trademarks etc www ac com pl info ac com pl AC S A ul 42 Pulku Piechoty 50 15 181 Biatystok Poland tel 48 85 743 81 00 fax 48 85 653 93 83 STAG autogas systems Table of contents 1 Controller installation cscs ec 4 1 1 Layout diagram STAG 4 QBOX BASIC sesicsccccsnicecasstncaeterasiadexedeidscctossdecusavedddeietentenedeidcectssuciauneveddeeiedaedeasieideee 4 1 2 Layout diagram S TAGA QBOX ea Coda bua Bah ova d eder eva 5 1 3 Semi sequential 6 PAL CONTO
10. AC S A all rights reserved Under penalty of law and or liability claims it is forbidden to copy publish distribute make available and or use in any way all or any part of information contained within this document in particular photographs drawings illustrations trademarks etc 15 www ac com pl info ac com pl AC S A ul 42 Pulku Piechoty 50 15 181 Biatystok Poland tel 48 85 743 81 00 fax 48 85 653 93 83 STAG autogas systems longer time at freezing temperatures Active procedure is marked with a red line displayed on the oscilloscope screen and with blinking gas injector icon in the parameters monitor window Petrol portion a set of options to allow automatic modification of petrol share map so that for rom higher than the value set in the minimum rpm field and injection pulses longer than the value set in the minimum petrol injection time field gas injection will be supported with petrol injection pulse equal to the value of the petrol adding time field Pressure release in the course of driving when gas injectors are not controlled e g in the cut off status gas pressure in the gas controller may rise If this option is on when pressure exceeds the set value Switch over threshold the controller will start a procedure to bring it down The procedure is switched off when the pressure drops down to 1 5 bar Pulse frequency parameter controls the frequency of the injectors ope
11. resulting from changes in the LPG pressure will be no longer possible The moment when petrol injectors are fully open corresponds to the load value of 100 7o If petrol injectors become fully open the Max load gas parameter should be set to approximately 95 96 This will result in the controller switching to petrol before full opening of LPG injectors Calibration parameters parameters related to controller calibration e Operational pressure LPG pressure at which the controller was calibrated This setting can be altered manually However each change of the operational LPG pressure requires multiplier map calibration e Minimum pressure when the pressure is lower than minimum the controller will switch to petrol if the duration of min pressure exceeds the Pressure error delay Gas temp gas temperature at which the controller was calibrated It is impossible to manually change this parameter Remaining parameters in the LPG Controller Settings group Gas injector type type of the LPG injector Changing the injector type requires re auto calibration or multiplier map calibration Clicking the Gas njectors Settings button m will open up the following window in which the LPG injectors can be calibrated Eas Injectors settings X Bank 1 2 Flow carr Open corr Inj seq amp 2 G1G2G3G4G5G6G7G8 b sj I2 n t us Bis
12. case the controller will display the long injection time error message In such case make sure that the Lambda sensor indicates a rich fuel mixture 3 2 Collection of the petrol injection map with petrol petrol map Having finished the auto calibration switch over to petrol and drive the vehicle for app 4 km to collect the petrol map During the collection of the map try to drive without changing gears e g at the 4th gear and in a way making the lambda probe to work i e changing its mode from weak to rich Blue points should appear during the collection of the map To collect the map quicker adjust vehicle load in such a way causing new points to be collected in places which are still empty Collection of maps is performed without participation of the diagnostic software thus can be done with the PC disconnected However collecting the map while the PC is connected and the diagnostic software running is quicker and enables the operator to see what is actually happening to the vehicle When the controller collects sufficient number of points the map will be drawn with a continuous line and the petrol map collection is finished AC S A all rights reserved Under penalty of law and or liability claims it is forbidden to copy publish distribute make available and or use in any way all or any part of information contained within this document in particular photographs drawings illustrations trademarks etc 42 www ac
13. 4QBOXPLUS ver 2 1 1 33 1 0 2014 04 28 15 53 16 Fig 16 The view of Errors tab 2 8 1 Errors of the gas controller Detection of events that restrict or prevent correct operation of the autogas system is indicated by messages with descriptions in red oection Active errors lists the codes of current faults detected by the controller If the cause of the fault is eliminated the entry is moved to the Error records section In other words this means that a defect had been detected but it is not currently active A Delete button for erasing recorded controller errors from the memory is located in the bottom part of the Errors tab below the Error records section The following errors may appear during operation Description in AC STAG application Gas injector missing mM eem circuit or fault of the specified gas injector Low gas pressure Gas pressure dropped or kept below the allowed low limit within the specified time High gas pressure Gas pressure 2x higher than the operating pressure for 60 seconds usually associated with reducer problems AC S A all rights reserved Under penalty of law and or liability claims it is forbidden to copy publish distribute make available and or use in any way all or any part of information contained within this document in particular photographs drawings illustrations trademarks etc 20 www ac com pl info ac com pl AC S A ul 42 Pulku Piechoty 50 15 181 Biatyst
14. Bank 2 Heated Catalyst Efficiency Below Threshold Bank 2 Fuel Level Sensor A Circuit Range Performance Post Catalyst Fuel Trim System Too Lean Bank 1 Post Catalyst Fuel Trim System Too Rich Bank 1 Post Catalyst Fuel Trim System Too Lean Bank 2 Post Catalyst Fuel Trim System Too Rich Bank 2 Clear counter 0 Reset counter Max clears Select gt Delete selected Fig 19 The view of the OBD error clearing configuration window 2 9 Multiplier map The Maps tab displays various charts that visually present gas controller operational characteristics Multiplier 16 3 910559104 DE Inj time ms Fig 20 Multiplier map Fig 20 shows 3 maps Multiplier map orange Petrol injection time map with petrol blue Petrol injection time map with LPG green The multiplier map is displayed in orange The left axis of the co ordinate system Multiplier and the lower axis Injection time ms relate to the multiplier map The multiplier map is used to set the multiplier for a given petrol injection time The yellow points visible at the map are used to set the AC S A all rights reserved Under penalty of law and or liability claims it is forbidden to copy publish distribute make available and or use in any way all or any part of information contained within this document in particular photographs drawings illustrations trademarks etc
15. for Injector 4 5 Gas temperature C LPG temperature at the pressure regulator output 6 Reducer temperature C liquid temperature at the reducer 7 Internal temperature C internal temperature in controller 8 Emulated engine temperature C estimated engine temperature 9 Lambda 1 voltage V voltage at the lambda probe 1 10 Current type oxygen sensor 1 mA current in the wide band probe 11 Lambda 2 voltage V voltage at the lambda probe 2 12 Battery V voltage at the controller s power supply 13 RPM rpm engine revolutions 14 Engine load current engine load value expressed in per cent All the above described signals are also visible on the oscilloscope To turn off a given signal on the oscilloscope click on it By clicking on the name of a given signal you can change its colour on the oscilloscope Respective icons are displayed next to gas injectors You can click any of the icons to disable enable gas injector represented by the icon together with corresponding petrol injector That way you can easily diagnose mechanical failures of the injectors The setting is temporary and deactivated automatically after disconnection of the diagnostic application and cutting off the voltage with the key Top of the Monitor pane is occupied by LED switchboard Depending on the type of controller and selected switch in can be presented in two versions presented on figures 12 13 Fig 12 Switch
16. switches to LPG at idle run Switch over time time after starting the engine when the controller can switch to LPG Reducer filling time delay between opening solenoid valve and gas injectors The function used to pre fill the system with gas Switch over temp time after starting the engine when the controller can switch to LPG Cylinder switch over time elapsing between the switching of subsequent cylinders E g with the setting at 200 ms for a 4 cylinder engine the switching from petrol to LPG or LPG to petrol will take 4 200 ms This works regardless of whether the petrol injection system is the so called full sequence or not Setting the switching time to O will result in the switching from petrol to LPG or vice versa and turning on and off of the solenoid valves without any delay Fuel overlapping activation results in single time simultaneous injection of gas and petrol pulse length configured to 5 ms when fueling is switched to gas The option eliminates the problem with switching on fouled gas which can be the case in systems with long gas lines Hot start if checked warm engine may be started directly from LPG Check that option also in vehicles equipped with the Start Stop function e g Fiats The option is used if the engine is started with the reducer temperature equal to or lower than the switching temperature but not lower than 20 C and gas temperature not lower than 10 C Switching
17. thus terminating the calibration procedure Successful calibration is signaled by smooth ascending followed by smooth descending of the gas level indication on the LED line from fuel reserve to maximum fuel level and back twice In the case of calibration failure the level indication on the LED line will change five times from reserve to maximum 4 4 Acoustic signals The controller may emit the following acoustic signals Three beeps if it had to switch over to petrol because of a too low level in LPG tank Three short beeps and long beep in case of a controller error Two short beeps and one long beep each time the ignition switch has just been turned on is a warning that the system needs to be inspected Three long beeps repeated every minute is a reminder that the engine is operating in emergency mode 4 5 Emergency start on gas In order to start the engine on gas emergency mode e g when the fuel pump fails position the key in ignition mode then press and hold the button on the switch The LED will be switched on in a continuous light mode and a buzzer sound will be generated When RPM is detected the controller opens the solenoids and the engine is started on gas fuel It is not possible to switch to petrol in the emergency mode The emergency mode is deactivated when the engine is turned off Operation in the emergency mode is indicated with occasional buzzer sounds AC S A all rights reserved Under pen
18. to gas sound checking the option will result in a beep upon switching to gas fueling Petrol switch over parameters related to switching from petrol to LPG Min gas RPM min rpm when lower the controller will switch over to petrol Max gas RPM engine rpm when higher the controller will switch to petrol AC S A all rights reserved Under penalty of law and or liability claims it is forbidden to copy publish distribute make available and or use in any way all or any part of information contained within this document in particular photographs drawings illustrations trademarks etc 13 www ac com pl info ac com pl AC S A ul 42 Pulku Piechoty 50 15 181 Biatystok Poland tel 48 85 743 81 00 fax 48 85 653 93 83 STAG autogas systems Pressure error delay amount of time with the LPG pressure lower than minimal before the controller switches to petrol and reports LPG pressure too low Intelligent press drop service the function allows to utilize gas residues in the LPG tank Min gas temp min LPG temperature when lower the controller will switch over to petrol Max load on gas the maximum load value in the LPG mode above which the controller switches to petrol This option is very useful for the engines in the case of which petrol injectors can be fully opened In such a situation the LPG controller can only open LPG injectors permanently as well However corrections e g
19. with inactive adaptation Reset the correction values for all gas injectors to zero Note the values of STFT and LTFT trims for bank 1 and bank 2 Then perform the following procedure starting from the 1st gas injector 1 Change the trim value for gas injector from O to 25 in the Gas injectors settings window 2 Observe which of the 2 banks shows changing STFT LTFT trims to lower values 3 Having identified the bank with changing trims assign the respective injector to the bank 4 Set the injector correction value to 0 After this STFT and LTFT trims should restore the initial values observed before stage 1 AC S A all rights reserved Under penalty of law and or liability claims it is forbidden to copy publish distribute make available and or use in any way all or any part of information contained within this document in particular photographs drawings illustrations trademarks etc 3 www ac com pl info ac com pl STAG autogas systems AC S A ul 42 Pulku Piechoty 50 15 181 Biatystok Poland tel 48 85 743 81 00 fax 48 85 653 93 83 Repeat the described procedure steps 1 to 4 for the remaining gas injectors in the system After the assignment of gas injectors to the bank activate autoadaptation if necessary set the initial gas correction values AC S A all rights reserved Under penalty of law and or liability claims it is forbidden to copy publish distribute make a
20. 24 www ac com pl info ac com pl AC S A ul 42 Pulku Piechoty 50 15 181 Biatystok Poland tel 48 85 743 81 00 fax 48 85 653 93 83 STAG autogas systems multiplier To move a given point select it by clicking on it The value of a selected point is displayed at the lower right corner of the map To move the points on the map use the following keys lt left arrow moves the point to the left change of the injection time for a given point right arrow moves the point to the right change of the injection time for a given point down arrow decreases the multiplier for given injection times up arrow increases the multiplier for given injection times insert when point is active or right mouse button add a new point Delete delete a selected point on the map Up Rising a selected point by 10 units or the entire map if no points selected Page Down lowering a selected point by 10 units or the entire map if no points are selected Ctrl lt change the active point move to the next one When the Shift key is pressed in the map movement speed is multiplied by 10 fast movement When no point is selected the 1 arrows move the entire map Apart from the multiplier map there are two other maps in the window The blue map represents the petrol injection times with petrol The right axis Collector pressure Bar and the lower axis Inject
21. 3 83 autogas systems 2 7 Oscilloscope Oscilloscope Opel Zafira STAG 4 GBOx PLUS 2014 02 21 11 51 43 082 Lv 22 234 22 254 22 274 22 294 22 314 22 334 22 354 22 374 22 394 22 414 22 434 FLU DI i Fig 15 Widok oscyloskopu On each tab except the parameters tab there is the oscilloscope window attached to present the changing monitor parameters described in section 2 5 In the bottom left part there are control buttons with the following functions from the left Start the oscilloscope Stop the oscilloscope Save current oscilloscope display Load saved oscilloscope display file Decrease the number of displayed points only for loaded graphs Increase the number of displayed points only for loaded graphs Display oscilloscope file information data logging start stop total number of stored samples application version controller version controller serial number Continuous green line is displayed at top of the oscilloscope screen while the controller operates in the L PG mode red line indicates operation of the injectors heating function The oscilloscope is an excellent tool to analyze vehicle working conditions Recorded parameters can be saved and reviewed In order to make the analysis of records easier the window includes navigation tools for effortless searching of the contents The curve is moved with the
22. ED 300 401B LED 401 switchboard LED 300 401B and LED 401 LED switchboard consists of Gas level indicator four diodes in a circular arrangement showing the current gas level in the tank Four green diodes indicate that the tank is full Button with AC logo used for fuel switching and indicate current operating conditions Off PETROL mode indication that the engine is fueled with petrol Slow blinking once per second AUTO mode the engine is started on petrol and switches to autogas when the set parameters are achieved Normal blinking twice per second no acoustic signals AUTO mode the engine is started on petrol and switches to autogas when the set parameters are achieved The system switches the engine to gas fueling The state may continue for up to 10 seconds depending on engine working parameters at the moment and controller settings Fast blinking 4 times per second with acoustic signals EMERGENCY mode system error prevents gas fueling e g empty gas tank LPG installation fault the engine runs on petrol Continuous light in white GAS mode the engine is supplied with autogas Continuous light in red operation on gas low fuel level If the controller is connected to the LED 401 switch additional functions are available user can adjust LED brightness 4 brightness levels if automatic LED brightness is Off The user can adjust the volume of buzzer installed inside t
23. JECTORS LPG or CNG INJECTORS 5 4 ap D RED BLACK VOLTAGE 5 3 SENSORS E YELLOW suene IGNITION lt 2v SWITCH 4 YELLOW BLACK GREY YELLOW 2 _ m GREEN A BLUERED n T 209 GREYBACK T GREEN SEACK PETROLILPG or CNG C SWITCH F L x RED CM RED WHITE e p NOT CONNECTED SS CN BUZZER SN 3 BLUE RED NE BLUE BLACK GREY BLUE WATER TEMPERATURE 2 SENSOR CT 04 2K L K WHITE RED 2 TO INLET GAS 5 2 MANIFOLD WATER OuTPUT TO GAS Lpg orena OUTPUT REDUCER PRESSURE and TEMPERATURE SENSOR ATTENTION Proper fuse needs to be placed into the socket 1 RED BLACK GREY RED RED LPG LEVEL SENSOR WPG Description and connection diagram of UEGO sensor is located in the help section of controller configuration E f RED BATTERY BLACK LPG or CNG MULTI VALVE ELECTRO VALVE L qe E 4 2 Fig 1 STAG 4 QBOX BASIC controller installation layout diagram AC S A all rights reserved Under penalty of law and or liability claims it is forbidden to copy publish distribute make available and or use in any way all or any part of information contained within this document in particular p
24. OO III NTC gt __ ___ gia ees 46 45 iei cile zie EIE TES ____ _ __ _6_______ _ _______ 46 5 Technical SOCCIHICALION Reo 47 6 Warranty restrictions exclusions eee ee Lee 47 AC all rights reserved Under penalty of law and or liability claims it is forbidden to copy publish distribute make available and or use in any way or any part of information contained within this document in particular photographs drawings illustrations trademarks etc 3 STAG Tes autogas systems 1 Controller installation 1 1 Layout diagram STAG 4 QBOX BASIC STAG STAG a Box BASIC es www ac com pl info ac com pl AC S A ul 42 Pulku Piechoty 50 15 181 Biatystok Poland tel 48 85 743 81 00 fax 48 85 653 93 83 Chose the proper type of sensor in software SENSOR wideband BROWN DIAGNOSTIC BS A e CONNECTORS IGNITION Ka mu INERFACE gt EE COIL RS 232 or USB 3 La 4 VIOLET me gt VIOLET BLACK PI 1 Pl 4 LI 1 LI 4 PETROL IN
25. ac com pl AC S A ul 42 Pulku Piechoty 50 15 181 Biatystok Poland tel 48 85 743 81 00 fax 48 85 653 93 83 STAG autogas systems V 127224221251 ee ee 39 220220 OBOT OO E ee ee ee EE eee ee ee 40 2220 iro T 0 0 42 3 STAG 4 controller programming 42 vm MP CAA me ences ec pe ed aa metas Se seed 42 3 2 Collection of the petrol injection map with petrol petrol MAP ccccccsecccccseeeccsseesccesesecesseeecesseeeeessaeeeeesanenes 42 3 3 Collection of the petrol injection map with LPG LPG map 43 3 4 Checking if maps match verification 5 43 8 0 43 3 6 LPG temperature correction ______ _ __6_6_ _____ 44 4 LED switchboard operation and acoustic signals User Manual 44 NN _ _ 44 4 2 LED 300 401B and LED 401 switchboard 45 4 3 Automatic calibration of LPG level indicator 45 LU W
26. adaptation On Off bank 1 current correction of injection time implemented by the autoadaptation Temp dev Bank 1 Momentary percentage value of petrol injection time deviation when driving on gas with respect to the reference injection recorded when driving on petrol A positive value means that the injection time on gas is longer than on the reference map ISA3 OL mode indication of autoadaptation working in an open loop mode 2 22 2 OBD mode With OBD selected the following settings and parameters can be configured and viewed Ee Auto adaptation IE x Auto adaptation jw Enabled C 1543 STFT B1 STAG LTFT B1 STAG Resultant corr B1 Configuration Target corr map engine temp Threshold LTFT maz Collect OBD corr map Inverted STFT Autoadaptation in OL Fig 40 Configuration of OBD adaptation AC S A all rights reserved Under penalty of law and or liability claims it is forbidden to copy publish distribute make available and or use in any way all or any part of information contained within this document in particular photographs drawings illustrations trademarks etc 40 www ac com pl info ac com pl AC S A ul 42 Pulku Piechoty 50 15 181 Biatystok Poland tel 48 85 743 81 00 fax 48 85 653 93 83 STAG autogas systems The map of OBD target corrections Press the Open button to display the configuration window in which the result
27. alty of law and or liability claims it is forbidden to copy publish distribute make available and or use in any way all or any part of information contained within this document in particular photographs drawings illustrations trademarks etc 46 www ac com pl info ac com pl AC S A ul 42 Pulku Piechoty 50 15 181 Biatystok Poland tel 48 85 743 81 00 fax 48 85 653 93 83 STAG autogas systems 5 Technical specifications Power supply voltage 12 V 20 30 Maximum power supply current for a 4 cylinder engine controller 1 Q 12 5 A gas injectors Current load in the sleep mode 10 mA Operating temperature range 40 110 C Protection class IP54 6 Warranty restrictions exclusions Warranty does not cover 1 Damage resulting from installing the controller not in line with the recommended layout diagram in particular from hooking signal cables up to other terminals than those specified in installation guidelines 2 Damage resulting from installing the controller in places incompatible with installation guidelines or from exposition to water high temperatures vehicle battery vapours 3 Devices tampered with repaired without proper authorisation 4 Mechanical damage through Customer s fault in particular damage of connectors including damage caused by use of inappropriate chemical cleaning agents controller housing electronics PCB 5 Electrical damage of circuitry brought a
28. as installation installation general information about the components of the gas installation 2 5 Signals ingectors LED switchboard On the right side of the window there are the Monitor windows The Monitor window shows the following signals measured by the controller 1 Gas pressure bar LPG CNG pressure value the difference in the pressure regulator pressure and the suction collector pressure 2 MAP pressure bar pressure inside the suction collector absolute pressure value 3 Injection time ms petrol injection time Petrol 1 Petrol injection time for Injector 1 Petrol 2 Petrol injection time for Injector 2 Petrol 3 Petrol injection time for Injector 3 Petrol 4 Petrol injection time for Injector 4 AC S A all rights reserved Under penalty of law and or liability claims it is forbidden to copy publish distribute make available and or use in any way all or any part of information contained within this document in particular photographs drawings illustrations trademarks etc 16 www ac com pl info ac com pl AC S A ul 42 Pulku Piechoty 50 15 181 Biatystok Poland tel 48 85 743 81 00 fax 48 85 653 93 83 STAG autogas systems 4 Gas injection dose ms Gas injection time Gas 1 Gas injection time for Injector 1 Gas 2 Gas injection time for Injector 2 Gas 3 Gas injection time for Injector 3 Gas 4 Gas injection time
29. ased New settings The controller indicates new settings The message is usually displayed when new firmware is installed to remind about the new options Low gas temperature Low gas temperature detected in gas fueling mode Check the condition and method of reducer installation Ignition switch signal missing The controller detects injection pulses with the missing ignition switch signal Check the connection of the ignition positive wire Ignition switch signal unstable The controller detected a brief loss of the ignition switched positive signal Check if the ignition positive wire is connected in the correct point AC S A all rights reserved Under penalty of law and or liability claims it is forbidden to copy publish distribute make available and or use in any way all or any part of information contained within this document in particular photographs drawings illustrations trademarks etc 22 www ac com pl info ac com pl STAG Tes autogas systems AC S A ul 42 Putku Piechoty 50 15 181 Biatystok Poland tel 48 85 743 81 00 fax 48 85 653 93 83 2 8 3 Errors the ECU The controllers equipped with a OBD adapter STAG 4 QBOX PLUS are capable of continuous monitoring of recorded and pending faults with the use of the onboard OBD2 EOBD interface The errors are displayed as codes according to OBD2 EOBD notation system with descriptions If an error occurs the Delete button can be used to erase OBD fau
30. board LED 300 Fig 13 Switchboard LED 300 401B LED 401 There is a button on the LED switchboard for changing the fuel type The operating condition is signaled in case of LED 300 switches with the diode located next to the button LED 300 401B and LED 401 switches use button illumination instead Basic indications Off petrol LPG CNG Pulsing auto mode The chapter 4 1 contain a detailed description of operating mode of the controller Gas level is indicated by LED 300 switches with a line of 5 diodes while LED 300 401B and LED 401 indicate it with 4 diodes arranged around the button The minimum level low fuel alarm is indicated by a red LED diode in LED 300 switches In LED 300 401B and LED 401 switches the status is indicated by illuminating the button in red After right clicking on the LED witch view its settings window is displayed Figure 14 Alternatively use the Gas level indicator configuration button on the Gas controller settings tab AC S A all rights reserved Under penalty of law and or liability claims it is forbidden to copy publish distribute make available and or use in any way all or any part of information contained within this document in particular photographs drawings illustrations trademarks etc 17 www ac com pl info ac com pl AC S A ul 42 Pulku Piechoty 50 15 181 Biatystok Poland tel 48 85 743 81 00 fax 48 85 653 93 83 STAG autogas systems Gas le
31. bout by hooking communication interfaces up not in line with installation guidelines AC S A all rights reserved Under penalty of law and or liability claims it is forbidden to copy publish distribute make available and or use in any way all or any part of information contained within this document in particular photographs drawings illustrations trademarks etc 47
32. com pl info ac com pl AC S A ul 42 Pulku Piechoty 50 15 181 Biatystok Poland tel 48 85 743 81 00 fax 48 85 653 93 83 STAG autogas systems 3 3 Collection of the petrol injection map with LPG LPG map Having collected the petrol map switch to LPG and collect the LPG map in the same way the petrol map was collected The LPG map should be collected in the same road conditions and with similar loads as the petrol map The LPG map is drawn with green points Having collected sufficient number of green points the map will be drawn with a continuous green line If the controller is set properly the multiplier characteristics selected properly the petrol and the LPG maps should match If the maps do not match the multiplier characteristic should be corrected at the points where the maps do not match the lower axis of co ordinates for injection times If the LPG map is collected with the PC connected and the diagnostic software running it is possible to immediately correct the multiplier characteristics when the collected green points do not match with the petrol map It is even strongly recommended to use the PC in this way as if the multiplier characteristics differ strongly from the required ones the controller starts to switch over and in the extreme case can activate the check signal lamp When correcting the multiplier characteristics make the points on the LPG map match with the petrol map Once both ma
33. com pl info ac com pl AC S A ul 42 Putku Piechoty 50 15 181 Biatystok Poland tel 48 85 743 81 00 fax 48 85 653 93 83 STAG autogas systems 2 9 1 Multiplier adjustment When 2 3 of the suggested area on gas and petrol map is acquired button amp tor multiplier adjustment function is activated The operation modifies the multiplier based on a deviation between the recorded maps for petrol and gas injection If map differences are minor the multiplier is not modified It is recommended to acquire injection time maps for the full suggested range of engine operation Multiplier matching is locked when autoadaptation is active ISA3 or OBD UU 2n Og i i E 0 9 Ia usns au cem __ MIR D cuo T 5 0 05 MEER 0 5 i om 2 9 0 3 8 EE NM ooo eec ue 01 0 0 0 2 4 Inj time ms i 12 14 16 158 20 22 24 Inj time ms DEC RE SE ES Fig 23 Multiplier map Operation of the multiplier adjustment function AC S A all rights reserved Under penalty of law and or liability claims it is forbidden to copy publish distribute make available and o
34. cted P P P Advanced settings E Temperature C Injection type Standard gt Gas 12 Iv Inj control type Standard Red 37 i Internal 39 i Other V mA 96 Lambda 1 255 M Battery 12 36 RPM o Engine load Status Waiting For gas STAG 4 PLUS ver 2 1 1 33 1 0 2014 04 26 15 53 16 Fig 5 Parameters window Car parameters AC STAG 0 15 7 Port Window Language Tools Help Monitor n x Parameters Autocalibration Errors Maps Recorder Diagnostic Car parameters Gas controller settings Advanced settings Car info Switch over to gas Petrol switch over Fuel type Le Min gas RPM 300 rpm Switch over threshold rpm M RPM E a EE LI SwiEch over time 2 _ Pressure error delay ms 3as 1 06 Reducer filling time z 3 Intelligent press drop service Inactive MAP 1 01 Smitch overtemp Min gas temp p sr Inj time dose ms LI Cylinder switch over 200 amp P1 0 00 G1 0 00 PM P2 0 00 02 0 00 Sensors and actuators 0 00 GS 0 00 Switching to gas sound mi Gas injector type 0 00 G4 0 00 Jac wot Calibration parameters Reducer temp sensor CT 0 2x included in kit Operational pressure au t bar ZEEE Temperature C Minimum pr
35. ction time 20 rms Pressure release Active Gas Switch over threshold i5 MAP Pulse frequency Other Inj time dose ms Ge Pre filling system P1 0 00 F G gt E uH Petrol portion E Min petrol inj time no 2 Min RPM p 0 00 GS id 0 00 F G4 Petrol adding time no P Injectors heating Temperature C Injectors heating Gas Activation temperature 10 Bed Internal Iv Other V mA 94 Lambda 1 Battery RPM RPM Status Waiting For gas STAG 4 QBOx PLUS ver 2 1 1 33 1 0 2014 04 28 15 54 16 Fig 7 Parameters window Advanced settings O x STAG 0 15 7 Port Window Language Tools Help Monitor n x Parameters Autocalibration Errors Maps Recorder Diagnostic Car parameters Gas controller settings Advanced settings Car info Gas installation fitter First Name Last Name Phone WWW 7 e mail Car info Inj time dose ms P1 0 00 G1 0 00 Larmaker P2 000 v G2 0 00 iv Year 0 Engine code 0 00 G3 0 00 capacity ema 34 tmepwenw 5 0 00 v G4 0 00 F P pp VIN Mileage km o A Temperature C Gas 12 Gas installation Hed 37 v Internal 39 i Reducer Jet diameter mm 0 0 t Other V mA 9 amp Lambda 1 255 Battery 12 35 RPM Engine load 22 Stat
36. cursor on the oscillator window bottom cursor buttons and clocking on the left or right side of the window 2 8 Errors The tab is split into areas Figure 16 by the type of displayed information Gas controller errors and messages o Actual o Registered Engine controller errors o Pending o Registered AC S A all rights reserved Under penalty of law and or liability claims it is forbidden to copy publish distribute make available and or use in any way all or any part of information contained within this document in particular photographs drawings illustrations trademarks etc 19 www ac com pl info ac com pl AC S A ul 42 Putku Piechoty 50 15 181 Biatystok Poland tel 48 85 743 81 00 fax 48 85 653 93 83 STAG Tes 21110045 systems ES AC STAG 0 15 7 Port Window Language Tools Help Monitor Parameters Autocalibration Errors Maps Recorder Diagnostic as controller errors and messages ngine controller errors Pending Gas 1 06 MAP 1 01 iv Inj time dose ms 2 91 v G1 0 00 P2 2 91 G2 0 00 P3 2 92 G3 0 00 2 92 v G4 0 00 Temperature Gas 24 Red 52 M Internal 36 5 Other V mA 9 4 5 Lambda 1 0 03 Battery 13 46 25 RPM 680 i Engine load 0 5 10 20 30 40 50 FO 50 100 110 120 130 140 150 160 170 180 190 200 Status Petrol STAG
37. e RPM correction map The RPM correction map forms a plane One axis of the plane represents the petrol injection time ms while the other represents engine revolutions rpm The map makes it possible to calibrate the multiplier depending on engine revolutions This is shown In Fig 24 It is possible to enrich weaken the mixture for a defined petrol injection time and revolutions In order to calibrate the multiplier the area which is to be calibrated must be selected by moving the mouse with the left button pressed over this area Another method is to press the SHIFT key and while holding it to select the appropriate area by pressing arrow keys lt Left arrow 7 Up arrow gt Right arrow Down arrow Having marked the area which is to be calibrated specified actions can be performed by using the combination of the CTRL key and one of the keys below 1 Arrow up higher calibration richer mixture Arrow down lower calibration leaner mixture Pressing the SHIFT key in the course of the multiplier calibration will multiply the required step by 10 The 3D tab seen on the right side of the RPM correction map windows allows activation of a 3D view Return to the classic two dimensional view is made through the 2D tab AC S A all rights reserved Under penalty of law and or liability claims it is forbidden to copy publish distribute make available and or use in any way all or any part of information contained w
38. e of the review Below the working times the Controller Info lists the following types of registered events 1 First PC connection date of the first controller PC connection 2 First change of settings date of the first modufication of the controller settings If these fields do not show dates but instead the symbols it means an error occurred in the Controller Info Time information has been lost and the controller will start counting the times from the beginning 3 Mod date 1 Mod date 5 a list of controller settings modifications From the most recent ones till the oldest 4 Clear errors Time stamp showing when some controller error was cleared Each event is also accompanied by a code linked to the PC on which the modification was made Thus knowing the modification date as well as the PC code it is easy to determine whether any modifications have been performed by anyone else The bottom of this window shows additional information 1 ECU S N the serial number of the controller 2 Your PC code The code of the PC on which the AcStag software is currently used AC S A all rights reserved Under penalty of law and or liability claims it is forbidden to copy publish distribute make available and or use in any way all or any part of information contained within this document in particular photographs drawings illustrations trademarks etc 11 www ac com pl info ac com pl AC S A u
39. ed with this sector disappears AC S A all rights reserved Under penalty of law and or liability claims it is forbidden to copy publish distribute make available and or use in any way all or any part of information contained within this document in particular photographs drawings illustrations trademarks etc 25 www ac com pl info ac com pl AC S A ul 42 Putku Piechoty 50 15 181 Biatystok Poland tel 48 85 743 81 00 fax 48 85 653 93 83 STAG autogas systems lt pe Multiplier 12 14 16 15 20 22 24 Inj time ms 0 2 4 6 244 God NOD ELEC EAE 1 X 22 0 9 ER 0 8 1 85 2 24 54 4 4 2 1 2 07 0 6 14 052 5 di e 032 Ey Sea M M 9 2 EN pce eU TES 7 0 2 4 8 10 12 14 16 15 20 22 24 Inj time ms Fig 22 Multiplier map Suggested area of gas map acquisition AC S A all rights reserved Under penalty of law and or liability claims it is forbidden to copy publish distribute make available and or use in any way all or any part of information contained within this document in particular photographs drawings illustrations trademarks etc 26 www ac
40. ent in particular photographs drawings illustrations trademarks etc 10 www ac com pl info ac com pl AC S A ul 42 Pulku Piechoty 50 15 181 Biatystok Poland tel 48 85 743 81 00 fax 48 85 653 93 83 STAG autogas systems Since last connection working time of the controller using LPG since its last connection with a PC Service Service Schedule When the controller reaches the working time using LPG set in this field every time the ignition key is switched off the controller will produce an acoustic signal reminding of the inspection Clearing the Inspection Schedule is explained below To set the Service Schedule click the buton in the About gas ECU window The following window will pop up Fig 10 Service set Service in lg e km Service Cine CNG lock Fig 10 Service set window In that window you can set up the time to inspection The time to inspection is computed on the basis of the selected mileage after which the inspection is to be carried out Default conversion rate is 1h per 50 km but you can modify it In the example shown in the figure 1000 km and the 1 h per 50 km conversion rate translate into 20 hours of operation to the nearest inspection To clear the service schedule select Inactive in which case the controller will not monitor the service schedule Selecting the option LPG CNG lock prevent driving on the gas beyond the set tim
41. ent extra injection handling checking the option will result in leaning of the post injection pulses It should be used for extra injection pulses that are too long to omit them with the option of Extra injection switch off threshold For the option to perform correctly the injection pulses must not be the source of RPM signal In some Mazda cars injection strategy varies from time to time to resemble semi sequential injection which may cause the effect of jerking It is recommended to activate the Intelligent extra injection handling for such cars Parameters in the group settings of the connection between the controller with the onboard diagnostic interface available in STAG 4 QBOX PLUS controller Configuration selecting the reader option results in an attempt to connect to the onboard diagnostic interface after each key switching if the controller operates in Auto mode The Advanced settings group offers the following options Emergency starts check to restrict the number of permitted emergency start ups on LPG and enter that limit into the Allowed textbox The number of the start ups already done in the past is displayed in the Performed field You can reset that counter using the Clear button Once the pre set limit is exceeded you will not be able to start the engine on LPG in emergency mode Injectors heating check to enable warming up gas injectors when vehicle was parked a
42. essure n amp te bal Extra inj off threshold 4 mz ae gt rd Int extra inj handling TE REST v Gas level indicator Config Other V mA 9 d Configuration OBD Reader Battery 12 35 RPM RPM 0 Engine load kal amp Status Waiting For gas STAG 4 QBOx PLUS ver 2 1 1 33 1 0 2014 04 28 15 53 16 Fig 6 Parameters window Gas controller settings AC S A all rights reserved Under penalty of law and or liability claims it is forbidden to copy publish distribute make available and or use in any way all or any part of information contained within this document in particular photographs drawings illustrations trademarks etc 8 www ac com pl info ac com pl AC S A ul 42 Putku Piechoty 50 15 181 Biatystok Poland tel 48 85 743 81 00 fax 48 85 653 93 83 STAG autogas systems STAG 0 15 7 E loj x Port Window Language Tools Help Monitor Parameters Autocalibration Errors Maps Recorder Diagnostic Car parameters Gas controller settings Advanced settings Car info Emergency starts Leaning oncold engine Allowed A engine Eemp Vi E Perf d RPM 4000 APH inclus Tq Pressure Bar d i gas inje
43. ference petrol map In other words adaptation will be attempted only if the deviation exceeds the threshold value Due to the mentioned natural distribution of petrol injection pulses as a result of the ECU control a minimum deviation setting 15 496 LTFT maximum maximum limit of the correction value that autoadaptation can implement Adaptation in OL Activation deactivation of autoadaptation in an open loop mode The function requires a voltage type Lambda sensor connected and activated Fuel Loop otatus reading option see OBDII EOBD reader Chapter 2 20 autocomplete Activation deactivation of the auto switching to petrol option in areas without reference injection pulses recorded The option works within an RPM range from 1500 to 6000 AC S A all rights reserved Under penalty of law and or liability claims it is forbidden to copy publish distribute make available and or use in any way all or any part of information contained within this document in particular photographs drawings illustrations trademarks etc 39 www ac com pl info ac com pl AC S A ul 42 Pu ku Piechoty 50 15 181 Bia ystok Poland I tel 48 85 743 81 00 fax 48 85 653 93 83 STAG autogas systems Auto stop checking the option will result in automatic blocking of engine operating curve points on MAP correction map when the specified deviation limit is reached see Adaptation enable threshold Active auto
44. ghts reserved Under penalty of law and or liability claims it is forbidden to copy publish distribute make available and or use in any way all or any part of information contained within this document in particular photographs drawings illustrations trademarks etc 30 R www ac com pl info ac com pl AC S A ul 42 Pu ku Piechoty 50 15 181 Bia ystok Poland 1 tel 48 85 743 81 00 fax 48 85 653 93 83 Tes autogas systems 2 14 Gas pressure correction map The controller is provided with automatic gas injection time correction based on gas pressure The Gas pressure correction map allows the user to enter manually an additional percentage correction based on gas pressure Entering modifications is just like on the multiplier Parameters Autocalibration Errors Maps Recorder Diagnostic amp Multiplier RPM correction Petrol portion Gas temp corr Red temp corr Gas press B G D ISA2 bank 1 404 304 204 10 0 10 Correction 0 1 2 3 4 Gas pressure Bar Fig 29 Gas pressure correction map view 2 15 Petrol map B Two dimensional gas and petrol injection time maps are displayed on the multiplier tab based on actual 3D maps acquired versus RPM and MAP pressure 000 5 000 gc BEER EX _ 1 4 Fig 30 Petrol map B view AC S A all rights reserved Under pena
45. he new version number should appear at the bottom of the screen and should reflect the version number of the update file Should the update go wrong the update window will be opened automatically upon connecting with the controller Perform the update procedure again 3 STAG 4 QBOX controller programming The STAG 4 QBOX controller may be programmed using the acquired petrol map and the gas map The procedure Auto calibrate the controller Acquire petrol map B Acquire petrol map G Check deviations between both maps 3 1 Auto calibration Prior to starting the auto calibration start the engine and wait until the lambda probe begins to work During the auto calibration the engine should work at idle run do not increase rpm switch off air conditioning and lights and do not turn the steering wheel as this may cause errors during the auto calibration During the auto calibration watch carefully petrol and LPG injection times If LPG injection times are shorter than petrol injection times the injector nozzles may be too large and should be replaced with smaller diameter ones When auto calibration is completed the multiplier map will be preset The multiplier s value for this point should be between 1 2 and 1 8 if the value is greater than 1 8 longer times of petrol injection i e greater load and high rpm may cause overlapping of injection times i e one LPG injection will begin before the previous one ends looped injections In such a
46. he switch The switch can be installed in any position to allow comfortable control of gas level indication and the reference position is the position of the buzzer Automatic detection of the connected switch If LED 401 is connected the application also shows LED 401 4 3 Automatic calibration of LPG level indicator The automatic calibration of LPG level indicator should be carried out when an empty tank is being filled with gas The indicator type should already be set but if necessary the procedure itself may change its type e g from ascending to descending The calibration procedure is as follows Press and maintain the switchboard push button Switch off the ignition switch during to three seconds after pressing push button Depress the button when the switch initiates level indicator calibration AC S A all rights reserved Under penalty of law and or liability claims it is forbidden to copy publish distribute make available and or use in any way all or any part of information contained within this document in particular photographs drawings illustrations trademarks etc 45 www ac com pl info ac com pl AC S A ul 42 Pulku Piechoty 50 15 181 Biatystok Poland tel 48 85 743 81 00 fax 48 85 653 93 83 STAG autogas systems Process of calibration is signalized on the LED in form of continuously increasing gas level When the tank filling is over switch on the ignition switch
47. hotographs drawings illustrations trademarks etc 4 www ac com pl info ac com pl Als AC S A ul 42 Pulku Piechoty 50 15 181 Biatystok Poland tel 48 85 743 81 00 fax 48 85 653 93 83 imum M autogas systems 1 2 Layout diagram STAG 4 QBOX PLUS STAG BROWN INTERFACE IGNITION E Bluetooth COIL H 67 7 DIAGNOSTIC A A nios Chose the proper type lama mrERrACE of sensor in software RS 232 or USB IF GREY VIOLET GREY VIOLET VIOLET BLACK VIOLET BLACK IGNITION VIOLET VIOLET VIOLET SWITCH ee e NN OU ct 47077771 7 PETROL LPG 1 Ecu SWITCH WHITE GREEN WHITE GREEN UEGO LAMBDA BLACK BLACK SENSOR r SENSOR 2 z RED wideband iu VOLTAGE l CURRENT before catalytic converter catalytic converter N ete RA 1
48. ing OBD corrections for each bank are displayed as a map with rpm and negative pressure axes Map content is also automatically refreshed during controller autocalibration The minimum engine temperature Engine temperature threshold read through OBD2 EOBD or emulated by the controller above which it is allowed to correct the gas dose Target DBD corr BI Fig 41 OBD target correction map Prog w czenia Warto poszerzajaca zakres akceptowanej docelowej korekcji Switch on threshold A value that extends the range of acceptable resultant target correction For example a threshold of 496 with target correction of 096 on the map means the range of 496 4 of the resulting correction within which the adaptation procedure will not correct gas doses max limit maximum trim value that the autoadaptation can make Acquire OBD correction map Activation results in automatic filling of target correction maps when driving on petrol Reversed STFT In conventional fuel dose control systems correction values are positive for the lean mixture and negative for the rich mixture The option should be active in vehicles in which the relation between the mixture and OBD correction positive negative status is reversed Adaptation OL correction values are used if the engine open loop control is applied Activation of the option allows additional adaptation adj
49. ion Time ms relate to this map The map consists of blue points After collecting the data the controller turns these points into a continuous line The same applies to the so called LPG map i e the map of petrol injection times with LPG which is green After the controller collects both maps i e the petrol and LPG maps the Deflection tab becomes active Deflection appears as a red line after pressing button The map window in Fig 20 shows also cursor which position changes vertically depending on the manifold negative pressure and horizontally depending on petrol injection times It is very useful during map collection as it shows the load and injection times of the engine After pressing button autoselection became active which means that the multiplier points will be selected automatically so that the point next to the cursor becomes active Maps can be deleted with buttons 2 petrol injection time map gas injection time map During the drive pressing the SPACE key select the point closest to the current cursor position In order to make injection time map acquiring easier on the left side of the multiplier window suggested engine load areas are presented as vertical lines The lines represent the areas of injection time maps which have not been recorded yet The blue line represents the petrol injection time map and the green one represents the gas map a given area of the map is acquired the line section associat
50. is forbidden to copy publish distribute make available and or use in any way all or any part of information contained within this document in particular photographs drawings illustrations trademarks etc 12 www ac com pl info ac com pl AC S A ul 42 Pulku Piechoty 50 15 181 Biatystok Poland tel 48 85 743 81 00 fax 48 85 653 93 83 STAG autogas systems Sensor is not connected no probe Reverse voltage reverse action voltage probe Lambda sensor 2 Available options Voltage standard voltage probe Sensor is not connected no probe Reverse voltage reverse action voltage probe Injection type type of injection used in the car Standard standard indirect injection petrol injectors with no current limit Renix indirect injection system petrol injectors with current limit Inj Control type type of petrol injectors control Standard standardowe sterowanie sekwencyjne Doubling petrol injectors are controlled in pairs i e 2 injectors are controlled from a single channel in the petrol controller The Gas controller settings window lists the following groups of parameters Switch over to gas parameters related to switching from petrol to LPG Fuel type type of fuel in the LPG system LPG Switch over threshold engine rpm required for the controller to switch to LPG For rom set to 700 the controller
51. ithin this document in particular photographs drawings illustrations trademarks etc 28 www ac com pl info ac com pl STAG autogas systems AC S A ul 42 Pulku Piechoty 50 15 181 Biatystok Poland tel 48 85 743 81 00 fax 48 85 653 93 83 Parameters Autocalibration Errors Maps Recorder Diagnostic l Multiplier RPM correction Petrol portion Gas temp corr Red temp corr Gas press corr B G D ISA2 bank 1 B Fig 25 3D map view The 30 view is a spatial display of the two dimensional map You can rotate the 3D map dragging it with the right mouse button Other editing operations may be performed identically as in the 2D map 2 11 Petrol portion map The Petrol portion tab offers configuration of the petrol post injection with simultaneous gas injector control Configuration of petrol post injection is made on a two dimensional map with an RPM and petrol injection time axes Like on the RPM correction map the cursor shows the engine operation curve point Navigation on the petrol portion map is identical as on the RPM correction map i e cursor keys lt t SHIFT and CTRL keys can be used to select map areas and modify their values Parameters Autocalibration Errors Maps Recorder Diagnostic Multiplier RPM correction Petrol portion Gas temp corr Red temp corr Gas press corr B G D ISA2 bank 1
52. jector at a time to check cylinders in which the times differ after switching from petrol to LPG If necessary adjust per cent correction factors so that the times do not change after switching to LPG WARNING Use this option as a last resort i e when sure that the installation was performed properly all mechanical issues have been eliminated and injection times variations for given injectors are still present when using LPG Do not ever use injection strip collector pipes of different lengths and then the injectors calibration to accommodate this difference Also never use this option when the system is not in a perfect working condition or when some of its elements have worn out Using this option in a manner not consistent with the above instructions may result in damage to the car Injection sequence Here you can freely configure the injection sequence which petrol injector is to control respective gas injector In 4 cylinder controllers the 180 button is used for quick switching of the injection sequence This results in switching of 1 1 2 2 3 3 4 4 configuration to 1 3 2 1 3 4 4 2 Reducer temperature sensor pressure regulator temperature sensor type selection Gas temp sensor gas temperature sensor type selection Extra injection off threshold petrol injection pulses shorter than the set value will be ignored by the controller gas injection pulses will not be generated for them Intellig
53. l 42 Pulku Piechoty 50 15 181 Biatystok Poland tel 48 85 743 81 00 fax 48 85 653 93 83 STAG autogas systems 2 4 Controller Parameters The controller firmware version is shown at the bottom of the screen Fig 5 Text presented on the exemplary figure means he following STAG 4 QBOX PLUS controller model 2 1 1 controller firmware version number 33 1 0 controller version number The Parameters window lists a number of parameters which need to be set individually for each vehicle The Car parameters group contains Number of cylinders numer of engine cylinders Engine type engine type Standard normally aspireted engine with supercharger Turbo supercharged engine Valvetronic Source of RPM signal engine speed signal source Ignition Coil ignition coil standard option Set the number of cylinders per one coil for correct data presentation Camshaft timing belt sensor This option is very useful in vehicles in which cylinders are switched off in the cut off state and lack of ignition coil pulses might be interpreted by the controller as zero engine speed CAUTION Use that option only with a digital sensor of the timing belt Define number of pulses per one engine revolution Option active while a timing belt digital sensor feeds engine speed pulses to the controller specifies the number of pulses per one engine revolution Parameter value must be adjusted for correct engi
54. lt codes which is equivalent to error acknowledgement check engine lamp via an external OBD scanner iBixi Pork Window Language Tools Help Monitor n x Parameters Autocalibration AX Errors Maps Recorder Diagnostic 2 as contraller errors and messages ngine controller errors Actual Pending Pressure Bar Gas 1 04 Iv MAP 0 32 Registered Registered Inj time dose ms 0300 Random Multiple Cylinder Misfire Detected 0 2 90 G1 3 96 POZOO Injector Circuit Open 0 P2 291 k G 3 96 0301 Cylinder 1 Misfire Detected 0 P3 291 F G3 3 96 291 G4 3 97 I Clear Auto clear list Gas 26 iv Red 64 Iv Internal Iv 45 Engine emul 90 i 4 Other V mA 96 35 Lambda 1 013 3 Battery 13 67 An RPM RPM 680 iv Engine load 9 05 1 20 X 30 40 50 60 70 50 90 100 110 120 130 140 150 160 1701 181 190 200 D mi si s Status Gas STAG 4 QBOX PLUS 2 2 0 33 1 0 2014 11 12 18 04 51 LL Fig 18 The view of Errors tab OBD faults Auto clear list button allows configuration and activation of automatic clearing of OBD2 EOBD errors The configuration window is split into two panels The left one contains a list of all errors that can be cleared In order to activate the automatic clearing function move the selected errors to the right panel by using the Select button Error
55. lty of law and or liability claims it is forbidden to copy publish distribute make available and or use in any way all or any part of information contained within this document in particular photographs drawings illustrations trademarks etc 31 www ac com pl info ac com pl STAG autogas systems AC S A ul 42 Pulku Piechoty 50 15 181 Biatystok Poland tel 48 85 743 81 00 fax 48 85 653 93 83 The B tab presents a preview of the petrol injection time map acquired when driving on petrol The yellow cursor represents the actual operating curve point Right click and hold to turn the map around 2 16 Petrol map G Petrol map G is a collection of petrol injection times for various combinations of engine speed and suction negative pressures acquired during driving on LPG The two perpendicular yellow lines form a cursor that indicates the current operational point rom and suction negative pressure of the engine You can rotate the 3D map dragging it with the right mouse button x ac Fig 31 Petrol map G view 2 17 Map acquisition state In order to monitor the process of map data acquisition the application has been provided with a special petrol map acquisition status preview activated with the State button in B and G map windows The preview of map acquisition status is divided into square sectors which are colored when a respective map section for this area is acquired
56. maximum 6 parameters at the same time Navigation is realized with buttons 4 2 which used to scroll through the parameters read via OBDII EOBD For showing or hiding the parameters of OBD reader on the oscilloscope in the application use the button The button eb opens the parameters configuration window Figure 36 which allows creating any sets of displayed parameters thanks to which it is possible to display a set including only parameters that are required for system calibration such as fuel loop status STFT and LTFT trims results of a wide band oxygen sensor The window displays set of 96 parameters available in OBDII EOBD standard Parameters unavailable in a given vehicle are grey In order to add or remove a parameter from the reader select it or deselect it in the field on the left side next to its description OBD reader config Seles Status Fuel system status m Eng Temp Engine coolant temperature B1 Shart term Fuel trim Bank 1 v B1 Long term Fuel trim Bank 1 iv F PRESS Fuel pressure vi RPM Engine RPM v Timing advance v InAirTemp Intake air temperature TP Throttle position v O2 51B1 Tr Bank 1 sensor 1 oxygen sensor voltage she Select all Deselect all Fig 37 OBD2 EOBD reader configuration AC S A all rights reserved Under penalty of law and or liability claims it is forbidden to copy publish distribute make a
57. ne speed readings in the controller Petrol injection pulses In older cars the engine speed brown wires need not to be connected since the controller can calculate current speed from injection pulses When RPM readings are disrupted RPM changes significantly but the engine operation is stable specify the minimum injection pulse time to ensure filtering the extra injection pulses and stabilize the RPM readings RPM signal RPM signal source RPM detection threshold in Volts Set the detection threshold to a value ensuring proper revolutions reading from the controller E g for impulses originating in a petrol engine usually equal app 5 V set the detection threshold to app 2 5 V For impulses originating from the ignition coil set the threshold to app 7 V Nissan Micra is an exception Its computer ignition impulses equal app 1 4 V in which case the detection threshold needs to be set at app 1 0 V For some Renault Megan models the detection setting needs to be set at app 10 V RPM signal filter Switching on YES and switching off NO of RPM signal filtration In case of cars from the U S A correct reading of RPM value can be difficult so this option should be switched on In other cases it should be switched off Lambda sensor 1 Available options Voltage standard voltage probe UEGO UEGO wide band current probe AC S A all rights reserved Under penalty of law and or liability claims it
58. ning Leaning on cold engine the cold leaning option allows eliminating the effect of jerking as a result of gas overflowing to the cold engine The problem occurs in certain vehicle models If necessary set the parameters as follows Max engine temperature threshold should be close to the engine temperature at which jerking stops NOTE Engine temperature threshold influences the time of function operation Always note if the ratio represents a rich fuel mixture for the warmed engine under high load Failure to follow this note may result in engine damage Max rpm threshold should be set by experience so that there is no power drop under maximum acceleration at higher rpm and there is a rich air to fuel mixture in open loop conditions Max gas injection time is set when driving on cold engine so that sudden pressing of the acceleration pedal does not cause jerking while keeping the maximum dynamic performance of the vehicle Switch off the solenoid When selected the gas solenoid valve is closed if ISA3 switches to petrol The option is helpful when using a timing advance processor TAP Pre filling system if the option is activated turning the key switch will open the solenoid shortly to prefill the system with gas The Car info window lists the following groups of parameters Gas installation fitter contact details of the installation of a gas fitter Car info car data which was mounted the g
59. ok Poland tel 48 85 743 81 00 fax 48 85 653 93 83 STAG autogas systems Supply voltage too low Controller supply voltage decreased below 9 V usually associated with a failing battery Gas temperature sensor missing Disconnected or disrupted circuit of the gas temperature sensor Reducer temperature sensor missing Disconnected or disrupted circuit of the reducer temperature sensor Gas temperature sensor circuit Gas temperature sensor shorted to vehicle grounding shorted Reducer temperature sensor circuit Reducer temperature sensor shorted to vehicle shorted grounding supply circuit failure Controller s circuit for injectors eA a d failed MEM valve supply circuit failure M or defective circuit or solenoid supply Solenoid valve Disconnected or Pw circuit of the solenoid supply MEM supply circuit failure Overloaded circuit of peripherals supply MEE UO Sensor WPG H gas level indicator Connection with the switch failed LED 400 LED 401 switch not connected Communication with the switch lost Connection with LED 400 LED 401 switch interrupted Heversed connection of the emulation circuit of the petrol injector with the indicated number Detection of a reversed connection is active only in the GAS fueling mode Channel indication is valid for sequential control Emulator not connected channel systems With semi sequential control channel 5 indication refers to
60. out diagram 1 4 Full group control PETROL INJECTORS LPG INJECTORS BLUE_RED 12V YELLOW YELLOW GREY BLUE RED GREEN GREY GREEN BLACK BLUE RED 12V RED GREY com BLUE RED 12V BLUE GREY BLUE BLACK Fig 4 Full group control layout diagram 1 5 Mounting the controller STAG 4 QBOX STAG 4 QBOX coniroller must not be installed in a place exposed to high temperatures and or damp 1 6 Selection of pressure regulator Install the controller according to the layout show in Fig 1 or Fig 2 In a sequential injection system pay attention to select a pressure regulator properly matched to the given car engine power and injector nozzles A pressure regulator that is poorly matched to the car engine power will not be able to provide sufficient supply of gas at large demand fully open throttle and to maintain nominal gas pressure within the system Should gas pressure drop below some preset low threshold the controller will automatically switch to petrol AC S A all rights reserved Under penalty of law and or liability claims it is forbidden to copy publish distribute make available and or use in any way all or any part of information contained within this document in particular photographs drawings illustrations trademarks etc 6
61. ps match the characteristics are properly set 3 4 Checking if maps match verification of deviations Having collected the petrol and LPG maps both maps drawn with continuous lines check the deviation between them In the Map window there is the D button located on the right Press it to see the deviation graph drawn with a red line If the deviation fits within 10 the controller is programmed properly otherwise the multiplier characteristics should be corrected at points where maps do not match 3 5 Controller manual setting The controller may also be set up manually which provided sufficient experience has been gained may prove quicker than the above described procedure Start with the auto calibration in the same way as described above this is necessary to ensure the controller works properly see 3 1 If the auto calibration finishes properly and the multiplier values are correct for the calibration point switch the engine to petrol and take it for a ride The multiplier characteristics need to be set in the following way Drive the car with a constant load i e the petrol injection times should be stable Adjust the engine loads so that the injection times equal e g app 5 ms The blue marker will help determine the injection times as it is location on the horizontal axis is determined by the injection times Next switch the car to LPG and watch the blue marker for variations in injection times when compared wi
62. r COME CHO E HA 28 Lue Novio 29 VIP EE fciischse vsUuL 30 2 13 Reducer temperature correction sa assa asas asas 30 2 14 GaS pressure CO MCC sarees septa 31 31 ON LTD EUIONCUME non taieeds 32 2 17 Map acquisition state M Gane Ghandi 32 2 18 Injection time deviation 34 2 19 MAP correction map autoadaptation 2 222 000000000000000005505000000 34 2 04629 OD FS GO 35 2 21 Assignment OF gas injectors to banks iet ttti o EE ott ror etate eia 37 en AE 39 AC all rights reserved Under penalty of law and or liability claims it is forbidden to copy publish distribute make available and or use in any way or any part of information contained within this document in particular photographs drawings illustrations trademarks etc 2 www ac com pl info
63. r use in any way all or any part of information contained within this document in particular photographs drawings illustrations trademarks etc 27 www ac com pl info ac com pl AC S A ul 42 Putku Piechoty 50 15 181 Biatystok Poland tel 48 85 743 81 00 fax 48 85 653 93 83 STAG en autogas systems 2 10 RPM correction map In the RPM correction tab an additional correction map is displayed to supplement the multiplier map Parameters Autocalibration Errors Maps Recorder Diagnostic Multiplier RPM correction Petrol portion Gas temp corr Red temp corr Gas press corr B G D ISA2 bank 1 B Re ey we 5 oO oO oO 5 Qd d 466 eo e e 5 d d gt lt gt lt o oc bh oO 5 oO o o 5 a 5 d d dh dh 3 O hh hh s 5 oco o o o 3 oO oO 5 oo o o OQ O Oo o o o H 5 ooo Ooo o o ooo oc o H 5 o oo oO oO Fig 24 The view on th
64. re calibration must be corrected The correction may be made by means of the LPG temperature calibration map see 2 12 However it must be remembered that this operation may be performed if the auto calibration and the multiplier setting while driving have been carried out correctly In order to make the correction in a proper way the car must be started with a cold engine Then beginning with the temperature of switching to LPG the petrol injection time must be checked and after switching to LPG the petrol injection time should be compared If the petrol injection time value is bigger after switching to LPG the positive correction must be made for this LPG temperature value the LPG temperature calibration map must be brought up If the petrol injection time value is lower after switching to LPG the calibration map for a given LPG temperature value must be brought down The calibration map must be set in such a way as to ensure that the petrol injection time remains the same after switching from petrol to LPG In order to set the LPG temperature calibration map correctly the procedure described above must be repeated for the full range of LPG temperature values in 5 C steps 4 LED switchboard operation and acoustic signals User Manual 4 1 LED 300 switchboard Fig 42 LED 300 switchboard The LED switchboard consists of Przycisk LED line indicating LPG level the LED indicating type of fuel button LED line shows c
65. s from the right panel can be removed only with the Clear selected button The errors will be cleared when the ignition is put to the ignition switch on the condition that there are recorded errors displayed in the right panel of the automatic clearing configuration window AC S A all rights reserved Under penalty of law and or liability claims it is forbidden to copy publish distribute make available and or use in any way all or any part of information contained within this document in particular photographs drawings illustrations trademarks etc 23 www ac com pl info ac com pl AC S A ul 42 Putku Piechoty 50 15 181 Biatystok Poland tel 48 85 743 81 00 fax 48 85 653 93 83 STAG Tes autogas systems clear list configuration Allowed DTC Selected DTC O2 Sensor Circuit Slow Response Bank 1 Sensor 2 P0461 Fuel Level Sensor A Circuit Range Performance O2 Sensor Circuit No Activity Detected Bank 1 Sensor 2 O2 Sensor Circuit Slow Response Bank 2 Sensor 2 O2 Sensor Circuit No Activity Detected Bank 2 Sensor 2 Catalyst System Efficiency Below Threshold Bank 1 Warm Up Catalyst Efficiency Below Threshold Bank 1 Main Catalyst Efficiency Below Threshold Bank 1 Heated Catalyst Efficiency Below Threshold Bank 1 Catalyst System Efficiency Below Threshold Bank 2 Warm Up Catalyst Efficiency Below Threshold Bank 2 Main Catalyst Efficiency Below Threshold
66. s manual To bring up the About gas ECU window select Gas controller info in the Help menu Gas controller info ECU working time Fuel 11H 26M 22 Since last connection OH OM 0 5 Gas 41H 39M 78 Since last connection OH OM i 095 Service 200H om Events Date Time First connection 2013 12 05 19 28 43 O42BC A15 First change af settings 2013 12 05 19 28 27 Be42BC A185 Last connection 2014 04 17 181551409 4 date 1 2014 04 10 10 09 22 144 2C29E date 2 2014 04 17 IDMELZSE date 3 2014 04 17 12 50 55 741276 date 4 2014 04 17 12 56 15 791276 date 5 2014 04 17 13 14 01 407791276 Clear errars 2014 04 17 12 59 49 Other ECU SIN 1101131125040173 Your PC cade 47791276 Fig 9 Gas controller info window The Gas controller info window B d Nie mo na odnale r d a odwotania Fig 9 shows the following parameters ECU working time Fuel working time of the controller using petrol listed in the following format H hours M minutes S seconds Since last connection working time of the controller using petrol since its last connection with a PC Gas total working time of the controller using LPG AC S A all rights reserved Under penalty of law and or liability claims it is forbidden to copy publish distribute make available and or use in any way all or any part of information contained within this docum
67. s window and tabs are presented on figures 5 8 If you get the Controller Error message and No connection appears in the lower left corner of the screen select a different COM port from the Port menu at the top of the screen AC S A all rights reserved Under penalty of law and or liability claims it is forbidden to copy publish distribute make available and or use in any way all or any part of information contained within this document in particular photographs drawings illustrations trademarks etc www ac com pl info ac com pl AC S A ul 42 Putku Piechoty 50 15 181 Biatystok Poland tel 48 85 743 81 00 fax 48 85 653 93 83 STAG Tes 21110045 systems EAC STAG 0 15 7 ni xj Port Window Language Tools Help Monitor nx Parameters Autocalibration Errors Maps Recorder Diagnostic parameters Gas controller settings Advanced settings Car info m parameters _ Number of cylinders cylinders Engine type standard m Pressure Bar Source of RPM signal ignition col Gas 1 06 Number of cyl per coil single MAP 1 01 ATE ae 25 4 Inj time dose ms IY RPM signal filter 0 00 G1 0 00 F P2 0 00 G2 0 00 Sensors actuators E P3 0 00 F G3 0 00 0 00 G4 0 00 v Lambda sensor 2 sensor not conne
68. ssages Actual 3 No gas injector 4 Pressure Bar 0 54 Pressure Bar Gas 1 34 Temperature C Gas 23 Temperature Red 40 Temperature Internal 40 RPM RPM RPM 908 Other V m Battery 12 Inj time ms Petrol 1 6 44 Inj time ms Petrol 2 6 44 Inj time ms Petrol 3 6 44 Inj time ms Petrol 4 6 44 Gas Inj Dose ms Gas 1 7 92 Gas Inj Dose ms Gas 2 7 92 as Inj Dose ms Gas 3 7 92 as Inj Dose ms Gas 4 7 92 Fig 17 fame of injector error 2 8 2 Gas controller message Messages are prompts that are not necessarily related to detection of events limiting or preventing the operation of the autogas system but signal the required verification of the configuration Unlike the errors message prompts are displayed in blue The controller can generate the following messages Description in AC STAG application 1 Meaning Gas injectors fully open Check the Lambda Looping of gas injection i e one gas injection pulse sensor at maximum load is overlapped by another pulse If the Lambda sensor during the message display works in a rich mode the error can be ignored otherwise use larger injector nozzles to reduce the multiplier LPG CNG locking review The gas installation requires a service inspection Lock LPG CNG option checked The controller will not operate in gas fueling mode until the service message Is er
69. th the earlier petrol injection times If the injection times decreased the marker moved to the left it means that for the selected injection times the multiplier is too high the mixture is too rich In this case lower the multiplier value for the 5 ms injection time in our case If upon switching to LPG the blue marker moves to the right it means the mixture is not reach enough and the multiplier needs to be brought up for given injection times The procedure described above should be performed for a few different injection times starting at the calibration point all the way until heavy load injections You can check the multiplier map e g every 2 ms starting at the calibration point If necessary add a point at the multiplier map to set it more precisely Once the manual setting is complete both maps petrol and LPG should match AC S A all rights reserved Under penalty of law and or liability claims it is forbidden to copy publish distribute make available and or use in any way all or any part of information contained within this document in particular photographs drawings illustrations trademarks etc 43 www ac com pl info ac com pl AC S A ul 42 Pulku Piechoty 50 15 181 Biatystok Poland tel 48 85 743 81 00 fax 48 85 653 93 83 STAG autogas systems 3 6 LPG temperature correction If the petrol injection time changes when the LPG temperature is changed in the LPG mode the LPG temperatu
70. the pair in which one or 2 emulator s is are connected incorrectly If the full group control is used the indication is not precise and channels should be manually switched to petrol to identify incorrectly connected emulator circuits Failure overload of AUX 12V circuit AUX 12V circuit is overloaded or short circuited to the ground connected load is too high Short circuit or failure of the supply Gas level indicator WPG circuit is overloaded or short circuit for gas level indicator circuited to the ground connected load is too high Upon error detection the controller records its conditions i e operating parameters of the gas system including pressure gas temperature reducer temperature engine rpm manifold negative pressure petrol injection pulses and gas dose Such data is normally called a frozen frame of the error and allows analyzing and detecting problems in gas system operation i applies to new hardware controllers AC S A all rights reserved Under penalty of law and or liability claims it is forbidden to copy publish distribute make available and or use in any way all or any part of information contained within this document in particular photographs drawings illustrations trademarks etc 21 www ac com pl info ac com pl AC S A ul 42 Pulku Piechoty 50 15 181 Biatystok Poland tel 48 85 743 81 00 fax 48 85 653 93 83 STAG autogas systems Gas controller errors and me
71. the petrol and gas injection time maps are expressed as a percentage Fig 34 Deviation map D view 2 19 MAP correction map autoadaptation map Autoadaptation systems available in STAG 4 QBOX PLUS STAG 300 QMAX PLUS controllers are provided with dedicated maps of correction with rom and load MAP negative pressure axes to make the corrections more natural and precise The map view can be accessed through the MAP correction Bx tab If autoadaptation is inactive the map can be used for additional manual corrections of gas fuel dosing AC S A all rights reserved Under penalty of law and or liability claims it is forbidden to copy publish distribute make available and or use in any way all or any part of information contained within this document in particular photographs drawings illustrations trademarks etc 34 www ac com pl info ac com pl AC S A ul 42 Pulku Piechoty 50 15 181 Biatystok Poland tel 48 85 743 81 00 fax 48 85 653 93 83 STAG autogas systems Parameters Autocalibration Errors laps Recorder Diagnostic 0 1 0 15 0 2 025 03 035 04 0 45 0 5 0 55 0 6 0 65 0 7 0 75 0 8 0 85 0 9 0 95 1 OA O OA gt O OG c G3 Cc C3 cC
72. ul 42 Pulku Piechoty 50 15 181 Biatystok Poland tel 48 85 743 81 00 fax 48 85 653 93 83 STAG autogas systems 2 12 Gas temperature correction map The controller is provided with automatic gas injection time correction based on gas temperature The Gas temperature correction map allows the user to enter manually an additional percentage correction based on gas temperature Entering modifications is just like on the multiplier Parameters Autocalibration Errors Maps Recorder Diagnostic Multiplier RPM correction Petrol portion Gas temp corr Red temp corr Gas press corr G D 1 2 1 Correction 1 Fig 27 Gas temperature correction map view 2 13 Reducer temperature correction map Reducer temperature map calibration allows for additional percentage adjustment of the multiplier Adjustment of the reducer temperature map calibration is similar to the multiplier map Modification of the correction line of the regulator temperature can be used in vehicles where petrol fuel dosing strongly depends on the degree of the engine temperature Parameters Autocalibration Errors Maps Recorder Diagnostic Multiplier RPM correction Petrol portion Gas temp corr temp corr Gas press corr B G D ISA2 bank 1 5 5 res e X 40 00 Y 15 00 Fig 28 Reducer temperatur correction map view AC S A all ri
73. urrent LPG level in the tank 4 green LEDs indicate a full tank a red LED indicates reserve The LED shows current operating status Off the engine runs on petrol Slow blinking once per second the engine is started on petrol and switches to autogas when the set parameters are achieved Normal blinking twice per second the engine is started on petrol and switches to autogas when the set parameters are achieved The system switches the engine to gas fueling The state may continue for up to 10 seconds depending on engine working parameters at the moment and controller settings Fast blinking 4 times per second system error prevents gas fueling e g empty gas tank LPG installation fault the engine runs on petrol the engine runs on LPG Push button for switching from one fuel type to another The controller remembers the last fuel type setting before switching the ignition switch off AC S A all rights reserved Under penalty of law and or liability claims it is forbidden to copy publish distribute make available and or use in any way all or any part of information contained within this document in particular photographs drawings illustrations trademarks etc 44 www ac com pl info ac com pl AC S A ul 42 Pulku Piechoty 50 15 181 Biatystok Poland tel 48 85 743 81 00 fax 48 85 653 93 83 STAG autogas systems 4 2 LED 300 401B and LED 401 switchboard Fig 43 L
74. us Waiting For gas STA G 4 GBOx PLUS ver 2 1 1 33 1 0 2014 04 28 15 53 16 Fig 8 Parameters window Car info AC S A all rights reserved Under penalty of law and or liability claims it is forbidden to copy publish distribute make available and or use in any way all or any part of information contained within this document in particular photographs drawings illustrations trademarks etc 9 www ac com pl info ac com pl AC S A ul 42 Pulku Piechoty 50 15 181 Biatystok Poland tel 48 85 743 81 00 fax 48 85 653 93 83 STAG autogas systems 2 2 AC STAG version After the diagnostic application startup the version info is presented on its top bar the examples figure 5 8 present version 0 15 7 2 3 Main menu The main menu consists of the following options m Port options may be used to select a COM port set up the communication link terminate communication with the controller s Window options may be used to open program screens such as oscilloscope monitor parameters monitor autoadaptation reader OBD if they have been closed Language options may be used to select user interface language version Tools option may be used to update hardware devices setup program settings load store settings store modified settings restore default factory settings Help options may be used to display info on the program the controller and documentation including thi
75. used to calibrate the engine at idle run After starting and warming up the engine when Lambda sensor starts operating start the auto calibration During the auto calibration the engine should work at idle run Switch off air conditioning and lights and do not turn the steering wheel During the calibration the controller will automatically switch from petrol to LPG The controller will be automatically switching on selected LPG cylinders Once the auto calibration is complete the controller displays a message informing the auto calibration has finished successfully The following messages may appear during the calibration Podczas kalibracji moga pojawic sie nastepujace komunikaty No ignition switch check the connection of the ignition switch High low rpm engine rpm is too low high check the rpm settings No injection pulses Intake manifold pressure too high Unstable engine operation manifold pressure engine rpm changes are excessive Check system tightness and make sure air conditioning is off AC S A all rights reserved Under penalty of law and or liability claims it is forbidden to copy publish distribute make available and or use in any way all or any part of information contained within this document in particular photographs drawings illustrations trademarks etc 18 www ac com pl info ac com pl AG AC S A ul 42 Pulku Piechoty 50 15 181 Bia ystok Poland tel 48 85 743 81 00 fax 48 85 653 9
76. usted to the status of the open loop In order for the function to be activated by the controller a Lambda probe must be connected or Lambda value must be read by the OBD2 EOBD reader AC S A all rights reserved Under penalty of law and or liability claims it is forbidden to copy publish distribute make available and or use in any way all or any part of information contained within this document in particular photographs drawings illustrations trademarks etc 41 www ac com pl info ac com pl AC S A ul 42 Pulku Piechoty 50 15 181 Biatystok Poland tel 48 85 743 81 00 fax 48 85 653 93 83 STAG autogas systems 2 23 Controller update To update the controller connect it to the diagnostic software and turn the engine off Select Tools Devices update from the main menu All available devices are automatically found The Devices update window will pop up The Devices Parameters window shows the information on current controller firmware version The Available updates window includes a list of updates available for the connected controller Loading an update not included in the program directory requires clicking Read update and selecting the update file Loaded update should be included in the list of available updates Click Update once the update file has been selected from the list When the progress bar reaches 100 the controller will disconnect and then re connect T
77. vailable and or use in any way all or any part of information contained within this document in particular photographs drawings illustrations trademarks etc 36 www ac com pl info ac com pl AC S A ul 42 Pulku Piechoty 50 15 181 Biatystok Poland tel 48 85 743 81 00 fax 48 85 653 93 83 STAG autogas systems ORE 2 21 Assignment of gas injectors to banks In V engines and boxer engines the controller can include 2 banks Bank 1 and Bank 2 correction values for OBD STFT B2 and LTFT B2 are other than zero In such case gas injectors should be assigned to respective banks Press the gas injectors configuration button in the gas controller settings tab group Sensors and actuating devices Gas injector type AC Wild The Gas injectors settings will be displayed Gas injectors settings OTT Open corr Inj seq 0 sje sje h G16263643556567068 b pe al E E E NE 4 o flus E E vus pf ene a ed ed 24 24 uj NE 0 p o gje 0 tb T 41 us keset Reset me e iwl 20 Fig 38 Assignment of gas injectors to banks Next start the engine and wait for the controller to establish communication with the OBD The engine should run on idle speed and be fuelled by gas
78. vailable and or use in any way all or any part of information contained within this document in particular photographs drawings illustrations trademarks etc 38 www ac com pl info ac com pl AC S A ul 42 Pulku Piechoty 50 15 181 Biatystok Poland tel 48 85 743 81 00 fax 48 85 653 93 83 STAG autogas systems 2 22 Autoadaptacion STAG 4 QBOX PLUS controller is provided with a mechanism that corrects gas dosing in real time during driving Activation selection of autoadaptation mode and configuration is performed in the Autoadaptation window accessed through the Window menu There are 2 modes available SA3 The controller adjusts the gas dose based on the reference map acquired earlier for petrol injection pulses Correction of gas dosage is based on the readings of parameters from the on board diagnostic interface compliant with the OBD2 EOBD standard 2 22 1 ISA3 mode With ISA3 selected the following set of parameters and settings is available Auto adaptation Enabled OBD I5A3 Params de STFT bank1 0 000 Temp dev bank1 v 1583 OL mode Inactive Configuration de Adaptation switch on threshold 5 LTFT max Es Adaptation in OL autocomplete Auto stop Fig 39 Configuration of ISA3 adaptation Adaptation switch on threshold Accepted deviation between the actual petrol injection time and time recorded for the re
79. vel indicator X gt gt gt Gas level 5 00 v Settings Gas level sensor type 50 kOhm Characteristics Decreasing Sound level LED brightness level Buzzer position Lower left corner Auto brightness adjust Active Switchboard type Lea 400 Fig 14 Gas level indicator configuration window Basic operations include configuring the type of indicator and setting the voltage values according to which LED diodes will be lit to indicate the gas level on the switch panel chapter 4 3 describes the procedure for automatic setting of threshold voltage values Select the type of gas level sensor and sensor characteristics The current voltage read from the gas level sensor is also displayed With the LED thresholds setting window displayed gas level change on the sensor results in immediate indication of the LED diodes is also used for checking the correct operation of the indicator and the switch When the window is closed normal operation changes in gas level are updated on the LED switch with a delay In LED 400 and LED 401 switches it is also possible to change the sequence of gas level diode activation the left one is considered as the first one bottom one with respect to the buzzer adjust the buzzer volume 1 minimum 4 maximum adjust the diode brightness LED 401 also allows automatic adjustment 2 6 Auto calibration The auto calibration window is
80. xi Be TT TT T T Ns gt Pp 8 EA LS n us BA T EII 45 b I5 n t us v 88 7121 IG FA us is F zr spe sq I8 o 8 Fig 11 Gas injectors settings window AC S A all rights reserved Under penalty of law and or liability claims it is forbidden to copy publish distribute make available and or use in any way all or any part of information contained within this document in particular photographs drawings illustrations trademarks etc 14 www ac com pl info ac com pl AC S A ul 42 Pulku Piechoty 50 15 181 Biatystok Poland tel 48 85 743 81 00 fax 48 85 653 93 83 STAG autogas systems Bank 1 2 The option allows assignment of injectors to banks available only in controllers for 6 8 cylinders See subsection 2 21 Gas injectors corrections Per cent correction of gas air mixture injected by gas injectors to each engine cylinder Injector opening correction the window allows configuration of very precise absolute correction of gas injector Unlike the percentage correction it is constant and not dependent on time It is ideal for compensating differences in performance of injection rails resulting from their mechanical properties The procedure having auto calibrated the controller check petrol injection times in individual engine cylinders Turn one gas in

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