SEC ECO - Lecho Elektronika Autogaz
Contents
1. 1 12 1 6 1 5 1 3 12 15 1 8 1 7 1 5 15 18 2 1 9 1 7 18 22 2 2 2 1 1 9 22 25 2 4 2 3 2 1 25 29 2 6 2 5 2 3 29 32 2 8 2 7 2 5 32 36 3 2 9 2 7 36 40 3 2 3 1 2 9 Table 1 ATTENTION The above sizes of nozzles are appropriate values dependent on the type of engine gas injectors and other factors 2 3 INSTALLATION OF CONTROL SYSTEM WITH SEC ECO GAS INJECTION STEP ONE BATTERY DISCONNECTION A ee eee ATTENTION Before starting the assembly of gas installation the battery should bet sabsolutely disconnected from the electrical installation of a vehicle E STEP TWO REDUCER INSTALLATION Picture 2 Reducer The reducer should be installed according to the instruction in the place where it could be easily checked repaired replaced The reducer should be fixed only by special designed openings on its rear part and only with special screws attached to the set The gas electrovalve can be mounted on the reducer as its integral part or separately All hoses have to be minimum 10cm from the elements of the exhaust system The signal of gas temperature sensor in the reducer is used to determine the moment of changing over from petrol to gasoline supply The temperature sensor mounted in the reducer should be connected to the wiring harness of gas installation SEC ECO rev 1 2 EN page 7 37 STEP THREE INSTALLATION OF INJECTORS DREAM XXI SL CNG LPG 12 VDC a _SNU080024875 Cod K904503 112. 2 Gas pressure differential and manifold manometer showing the actual gas pressure in UCC 1 sensor this is a sum of differential and manifold pressures Separately they are being shown on windows 3 4 Gas temperature the thermometer shows graphically and numerically the value of gas temperature 5 Reducer temperature the thermometer shows graphically and numerically the value of reducer temperature 6 Lambda probe the lambda oxygen sensor shows graphically and numerically the value of lambda 4 3 Description of the tab PARAMETERS The parameters written manually are saved to the driver after exit from the tab PARAMETERS or after clicking the button Enter The parameters chosen by the mouse for example kind of injector are saved to the driver after the choice of given parameter Vehicle parameters Vehicle s parameters Gi Ignition system type fi cyl Turbo No turbine 3 2 Rpm signal w 5 Revolution signal level 10 0 4 1 Kind of ignition system the ignition system should be so adjusted that it could display rom of the engine consistent with the actual rom 2 Engine rpm signal choose 12V or 5V so that rom would be shown correctly on the tachometer in the program 3 Turbo this option is used to set the car with turbine After its switching off the range of enrichment on the maps changes from 50 to 90 4 Revolution signal level placing the level of swit
3. To see them select the box of given parameter Attention if given reading can t be selected it means that the car doesn t handle the parameter Parameters Oscilloscopes Diagnostics 4utoadaptation Mixture adjustment Adjustment Vehicle s indentitication number WIN a Fuel systern H1 status vw 0 Open loop due to insufficient engine temperate 2 Fuel system H2 status G a ee Calculated load value Z E Ps Coolant temperature C E F 7 7 7 Correction Short Term p NOT SUPPORTED FP NOT SUPPORTED Long Term gt r NOT SUPPORTED M NOT SUPPORTED Fuel pressure kPa Iw 364 Inlet manifold pressure kFa 2 128 Engine s revolutions RPM 2 5 Vehicle s speed kmh E fo Advance angle E NOT SUPPORTED Inlet air temperature C E U 8 8 Alr flow strenght a s E o Throttle opening E fs Commanded secondary air status si PO NODSUPPDRIED S Lambda probes 5 s s sx Sensor 1 Sensor 2 Sensor 3 Sensor 4 Voltage M p NOT SUPPORTED NOT SUPPORTED NOT SUPPORTED NOT SUPPORTED Bark 1 Shot Temcon PNOTSUPPORTED NOTSUPPORTED NOTSUPEORTED NOTSUPFORTED Voltage M p NOTSUFPORTED NOT SUPPORTED NOT SUPPORTED NOT SUPPORTED Bark 2 Shot Teameon z PNOTSUPPORTED ROTSUEFORTED NOTSUPEORTED NOTSUPPORTED 4 7 2 OBD driver error check It allows to determine and delete errors which arise in the dri
4. Load controller s initial settings Correction a loft Service options ECU connection registry SEC ECO rev 1 2 EN 5 Technical specifications Operating temperature range 40 C 125 C Voltage input range 10 16 VDC Minimal resistance of gas injector 2 O 1 to 6A Maximal rated current In depending on used injectors Standby curent Below 1mA Measuring of gas pressure Diff Sensor absolute relative measurement filtered FIR Measuring of gas temperature Diff Sensor 0 5 Measuring of reducer temperature Mitsubishi 0 5 temp sensor Communication Diagnostic interface Computer processor DSP 130 MHz Analog channels lambda probe Voltage range 0 16V sampling 12bits pressure temperature 100kHz Reading of petrol injectors Resistance of internal emulator Petrol injectors controlled with ground and BE L 100Q 10 It s possible to order version with a different resistance ATTENTION the manufacturer reserves himself the possibility of changes in the program not contained in this instruction 1 1 1 2 1 3 1 4 1 5 1 6 1 7 WARRANTY The basis to use the warranty powers is to have a properly completed warranty book and the original excerpt from the certificate of installation approval The warranty is given by the plant mounting the installation for the period of 24 months from the date of
5. curve for petrol if yes the adjustment is finished successfully Disconnect the interface from the driver and stick out from the vacuum system finishing the adjustment 4 DESCRIPTION OF SEC ECO PROGRAM 4 1 Description of lower Visualization Panel Injection times ms Petrol Petrol if H352 2 1351 a 1352 a 1352 Po Bee if 17 43 a 17 42 a 1743 af 17 44 Auto ECU connection active CONS Driver yver 66 4 Interface ver 5 31 76 1 Driver Error Status If during the system work appears error it will be indicated by flashing the red box and information Error After clicking the box it is possible to read the error code The error can be deleted from the program menu reset removes also old errors 2 Gas and petrol injection time petrol injection times displayed on the screen in ms gas injection times displayed on the screen in ms 3 Fuel change buttons thanks to these buttons the system supply between petrol gas or automatic work can be changed at any time the switch over works also when the conditions of switching over weren t reached 4 Fuel change button petrol automat gas clicking causes cyclical change of state petrol automat gas 4 2 Description of readings A T Differentisi Manifold leS m EYE OSE O IL Tl All values are displayed during the real time 1 Engine rpm the tachometer shows actual engine rom during the real time
6. installation for electronic parts 12 months from the date of installation for mechanical parts reducer injectors etc bought from LECHO Elektronika Autogaz The manufacturer is not liable for defects or damages resulting from faulty installation The repair of faulty installation of parts should be done within 14 days from the date of written notification of failure at the plant which has mounted it The warranty does not cover materials that have been damaged as a result of normal operation filters etc The manufacturer is not liable for damages of installation caused by contaminated gas fuel The loss of warranty cause failure to comply with recommendations and information on the proper operation of the gas installation contained in the User Manual and Warranty Book violation of seals and regulatory elements of installation failure to follow the recommended maintenance procedures and the lack of their confirmation on the guarantee making individual repairs or adjustment of gas installation The manufacturer is not liable for damages caused by the poor technical condition of the engine or its components affecting the proper operation of the gas installation LECHO Elektronika autogaz sp j 15 124 Bia ystok ul Gen Andersa 26 tel 085 675 45 03 fax 085 675 52 34 www lecholpg pl
7. left lower corner of the program Stage 2 SETTINGS CONFIGURATION IN THE PROGRAM In the tab menu on the left program window choose the tab PARAMATERS Set the parameters of the vehicle and other configuration options for gas switch over Stage 3 AUTO ADAPTATION After performing all above activities it is necessary to start automatic regulation so click the tab AUTO ADAPTATION the driver will collect basic parameters This should be made at idle and means pushing the button START and following the instructions on the screen During the auto adaptation process is also performed the test of proper nozzle choice The program informs if used nozzles are appropriate or recommends their replacement if they are improper After the replacement of nozzles repeat the process of auto adaptation This is the end of automatic driver regulation Stage 4 PRECISE DRIVER ADJUSTMENT WITH THE HELP OF OBD VACUUM INTERFACE The adjustment is made during the drive with laptop connected to the central with the help of OBD interface There are two possibilities of precise driver adjustment 4 1 Adjustment from OBD In case when the car is equipped with OBD diagnostic socket connect the OBD plug into the socket in the car and the white plug to the driver The kind of report signalized with message confirming the connection with vehicle OBD system will be detected automatically In case of incompatibility of kind of report used in the car the program wil
8. to very high but are modified manually 5 Time between the cylinders we choose the kind of switch from petrol to gas as a sequential switch or simultaneous switch of all injectors The sequential switch eliminates the jerks during the change of power from petrol to gas 6 Starting on gas the option enables starting the car directly on gas without petrol This should be used only when it s necessary because when we often start the car on gas we can cause a permanent damage of gas installation Switching to petrol Switching to petrol Engine minimum rpm Y Autoadaptation pressure bar Minimum rpm level Pressure of switching back to petrofbar 0 50 Y Delay of switching back 4 petrol ne Switching off defe to low g s temp for the option used very seldom allows to switch to petrol power below minimal 1 2 Minimal engine rpm on gas rpm minute The diode G orange on the switch is off 3 4 Maximal rpm of the engine on gas the option used very seldom allows to switch to petrol power by maximal rpm minute The function isn t signalized on the switch 5 Auto adaptation pressure pressure value at which the last auto adaptation was carried out the parameter is set automatically after auto adaptation 6 Pressure for return to petrol the pressure below which the driver will return from gas power to petrol power during the pressure drop to the determined thre
9. 0RD00140 Pemumis PD MALY sa Ea 67R010199 WT 40CA120C E E4 10R021368 WP CLASS 2 24 26 08 Picture 3 Injector rail The injector rail should be mounted near the inlet collector and possibly far from the high voltage wires Make the openings on the ends of collector wires near the suction valve then thread them and screw into them brassy nipples These nipples should be connected with pressure rubber hoses to the nipples of injector rail The connections should be protected with metal clamps Attention should be given at the length of rubber hoses which should be equal To the injector rail should be connected the harness of feeding and control wires from the gas driver ATTENTION 1 Rubber hoses connecting gas injectors with collector should have equal length 2 The injection rail shouldn t be mounted with outlet holes directed upwards STEP FOUR GAS FILTER INSTALLATION Picture 4 Gas filter pressure and temperature sensor The volatile gas phase filter should be mounted between the reducer and gas injectors rail with the use of pressure rubber hoses The connections should be protected with metal clamps To the BOSCH sensor should be connected a wiring harness with four cable outlets see the scheme The gas filter should be mounted in the place accessible for replacement according to the rules described in the warranty certificate SEC ECO rev 1 2 EN page 9 37 STEP FIVE INST
10. ALLATION OF SEC ECO DRIVER T EREE AD T 4 Sie t j 2 4 m 4 9 a ee lt e od v pra x S 3 a a ea s Meat gt a oa e we x a 4 Y t ECO w T t e _ sasa SEC ECO E TE Om 14313 2 Picture 5 Driver SEC ECO driver is available in 4 cylinder version But it is able to operate the vehicles with less number of cylinders i e 3 The driver should be mounted in accessible place of engine chamber The driver should be mounted away from sources of electromagnetic interference for example ignition coil away from the sources of high temperature for example engine exhaust manifold and at a safe distance from the fluid tanks away from the contact with water Required installation joint downwards to reduce the consequences of eventual flooding and damage to the driver STEP SIX CONNECTION OF GAS LEVEL INDICATOR Picture 6 Switch The switch should be mounted inside the car in the place which is easily accessible and visible from the seat of driver During the installation the switch should be carefully pressed into prepared opening fi 8mm The system makes possible the cooperation with gas level sensor 0 20kQ 0 50kQ 0 900 and the other after the adjustment own thresholds in the program SEC ECO rev 1 2 EN page 10 37 STEP SEVEN WIRING HARNESS CONNECTION OF GAS INSTALLATION l The assembly of fuse cover should be made accordin
11. After starting the test on the switch appears an orange diode marked with G and simultaneously to the electrovalves is transmitted the voltage 12V The test consists in listening if the electrovalves are opened it sounds as metallic clatter of electrovalve anchor 4 8 Description of the tab Adjustment The tab contains additional parameters which enable the system adjustment The parameters were divided topically and each topic can be separately switched on off 4 8 1 Correction for chosen injectors Correction on selected injectors of T 1 me E al Idle gear injector time addictional correction rz The tab no 3 allows to make an adjustment on chosen injector or the group of injectors The time should be given in milliseconds The correction allows to adjust equal time on each injector 4 8 2 Filtration of extra injections Extra injections filtering oor Minimum injection time rz The filtration of additional fuel injections The slider allows to adjust the time of extra injections which will be omitted by the calculation of correction for gas injectors The omission of additional injections eliminates jerking during the drive The optimum value should be adjusted experimentally during the drive 4 8 3 Mazda filter Mazda filter Of Min injection time to activate me Fitening intensity me 0 5 Min rpm to activate This filter eliminates jerking in mazda cars 1999 2001 It is necessa
12. Installation and adjustment instruction for sequential synchronous sectional gas injection driver SEC ECO m PETROL LECHO ELEKTRONIKA AUTOGAZ www lecholpg pl T IRS nana 1 2 UQ C Of JIA J f TABLE OF CONTENTS 1 General information 2 Recommendation concerning the assembly 2 1 Connection diagram 2 2 Shortened installation of control system with gas injection SEC ECO 2 3 System installation battery disconnection reducer installation injector installation gas filter installation installation of SEC ECO driver connection of gas level indicator wiring harness connection of gas installation electric connection of injectors battery connection adjustment of SEC ECO system 3 Adjustment instruction for SEC ECO system step by step 4 Description of program for sequential SEC ECO gas injection 4 1 Description of lower Visualization Panel 4 2 Description of readings 4 3 Description of the tab Parameters 4 4 Description of the tab Auto adaptation 4 5 Description of the tab Adjustment Map 4 6 Description of the tab Oscilloscopes 4 7 Description of the tab Diagnostics OBD 4 8 Description of the tab Advanced 4 9 Description of program menu 5 Technical specifications 6 Warranty CON NN O O OQ O Bae Bee Bee N RES ee j E E pV N OD OW OO CO BW AON O Ob G BSN NY NY a OO O 1 GENERAL INFORMATION Equipment necessary to t
13. Translation oo oo oo oo ooo O00 ooo 000 Differential pressure bar 13 Additional map of making rich from the differencing pressure 4 8 9 Revolution parameters Revolution parameters Revolution filtering Eim Filtrations of revolutions We should set so as to revolutions Where shaved stable on the revolution counter 4 8 10 Petrol injection driven by Petrol injector driver by M oft Choice between injectors controlled by plus or minus 4 9 Description of program menu File Port Extras Language Read parameters Save parameters Recording parameters 1 Read parameters saved parameters reading from the prior driver settings file or copying from the other drivers files which were earlier saved 2 Save parameters saving parameters to the file in order to use them later with given car or to copy to the other driver 3 Recording parameters recording of configuration parameters to archive parameters of adjusted cars Port eee SEC Eco Test 7011 06 08 Extras Language Hi Aubodeteck Ckri D COM CoM Autodetect automatic port detection on computer to which was connected the interface connecting the driver with computer 2 COM1 to COMS3 the ports on which the driver was detected Extras eee SEC Eco Test 7011 06 08 File Pork Extras Language Help Load controller s operation time Parameters
14. ching for accessing reading revolutions Setting up of gas installation Gas installation s parameters Select fuel type LPG Regulators temperature sensor K Injector type OML Regulator underpressure Connected z Level senzor type Hall Lambda Probe 1 D T Buzzer signal On DADO 507 1 Choice of fuel The engine works on gas CNG or LPG depending on the mounted installation 2 Kind of injector it is the choice box of used injector choose the used injector from the list the change of injector modifies Injector Parameters in Advanced Settings eventually choose the injector from available on the list then in order to modify its settings choose own definition which allows to change injector parameters in advanced settings ATTENTION If the injector is available on the list its settings shouldn t be modified because it can result in improper system operation Injectors settings M Settings Gas injection s maximum time ms Gas injection s minimum opening ms Injection s full opening ms Percentage sustain 0 Gas inj switching on delay to petrol ms Save Cancel Injectors settings 2a Maximal time of gas injection maximal time which the gas injector is able to generate standard setting 30ms 2b Minimal opening of gas injector minimal injection time for opening of gas injector if the opening of petrol injector will be detected this parame
15. d the black sensor wire to the mass of vehicle In the case of Hall sensor the power supply should be additionally connected from the blue supply wire of gas electrovalve The connection of gas electrovalves the gas electrovalves installed near the gas tank multivalve and near the reducer should be connected to the blue wire of gas driver The connection of reducer temperature sensor the cables from orange brown and white black wiring harness connect with wires of reducer temperature sensor ATTENTION The temperature sensor is not polarized The change of colours doesn t cause wrong working of the sensor 7 Switch connection connect the cables of wiring harness suitably with the switch wires keeping the compatibility of colours 8 Connection of Lambda Probe the driver makes possible to connect one Lambda probe The connection of probe is a purple wire The Lambda probe signal does not affect the functioning of the driver it only gives the information about the state of mixture STEP EIGHT ELECTRIC CONNECTION OF INJECTORS Connect suitable cable ends with the wires of petrol injector rail cutting and switching the gas installation wires into electric circuit in appropriate order according to the assembly diagram picture 1 STEP NINE BATTERY POWER CONNECTION After all checking activities and making sure that all connections are correct with regard to quality of wire connections and compatibility of connections with th
16. e assembly diagram the battery can be connected to the vehicle electric system STEP TEN ADJUSTMENT OF SEC ECO SYSTEM After checking all connections battery connection but before inserting the fuses the vehicle can be started on petrol Then fill the gas tank with appropriate gas LPG or CNG Then insert the fuse start the engine wait for switch over to gas supply and check with Suitable tester the thickness of gas installation After that it is possible to make adjustment of the system according to SEC ECO programming instruction 3 Adjustment instruction for SEC ECO system SEC ECO system can be regulated using the interfaces 1 RS232 COM enables full calibration rating AUTO ADAPTATION viewing all parameters except these which are read from OBD 2 OBD2 enables exactly the same as interface RS232 and in addition it is possible with its help to observe and use the parameters from OBD system This interface has also the mapping function from the vacuum Particular adjustment stages Stage 1 CENTRAL CONNECTION 1 Connect interface RS232 or OBD2 to the PC computer then connect to the interface connection in the wiring harness and in case of interface OBD2 additionally connect the OBD plug into the socket in the car 2 Start the engine 3 Start on computer the actual version of software appropriate for the driver Then takes place the automatic detection and communication with the driver It will be indicated in the
17. ence is the greater number of adjustment points In addition there are speed ranges after click Edit characteristic points described in item 4 5 2 2 Additional buttons for the standard map 4 5 4 Corrections from OBD Switching on the regulation enabling enrichment of mixture in different ranges of engine operation in the diagram mode depending on the OBD system correction readings The use of OBD corrections is possible after cables connection according to the mounting diagram or through the interface to OBD2 socket The adjustments are made automatically on the basis of OBD corrections The shape of characteristics can be observed on the diagram Parameters Mixture adjustment Oscilloscopes Diagnostics Adjustment idle injection time comection ms Charactenstic Points Autoadaptation 0 6 x Edit x 50 0 45 0 40 05 35 0 30 0 25 0 20 0 15 0 10 0 5 0 H dey Baaripapi del PAPE IS aa 505 Mixture enrichment a 1 22 33 44 55 B B TT 5 6 28 11 0 12 1 12 1 njection time ms Calibration mode El Marui E seua Baer m o On the diagram with red colour are marked the intervals for which the corrections were saved and with vertical lines is marked the interval during which follows the given correction It enables the exact map adjustment in the whole load range SEC ECO rev 1 2 EN 4 5 5 Vacuum mapping semi auto mode The switching
18. g to the assembly diagram without inserted fuses The connection of gas installation wires with battery system the red wire of gas installation connect directly with plus on the battery The black wire of gas installation connect directly with minus on the battery The red and brown wire connect into the electric installation of a vehicle in the place making possible to start the car i e into the system in which occurs voltage after turning on the ignition ignition switch The connection of rotational speed signal yellow and black to determine the rotational speed of engine crankshaft the driver uses the rotational speed signal RPM transmitted by ignition module to the petrol driver The identification of signal is necessary for switch to gas power which follows by rotational speed adjusted by the use of computer program typically 2000r p m The electric wire which sends the signal can be found with the use of voltage tester or oscilloscope The impulse frequency sent to the petrol driver increases with engine rotational speed so that also increases the frequency of signal maximum on the oscilloscope screen The value of signal voltage amplitude RPM is within 12V and this should be adjusted in the program if we get the signal from Hall sensor or another one we should choose the option of 5V in the program The connection of gas level sensor in the tank the yellow sensor wire should be soldered to the yellow wire of gas driver an
19. he correct installation of SEC ECO system computer SEC ECO software OBD or RS232C interface workshop tools system properties The operation basis of sequential driver in power supply installation is gas decompressed to a suitable pressure The sequential operation of installation means that injection of gas into the engine combustion chambers follows in order which it is assigned for petrol engine power Sequential injection means also that gas as engine fuel is injected in the amount and during time regulated by the sequential system These values can be regulated by appropriate system settings SEC ECO system is fully automated and using it as an alternative power by the owner of the vehicle doesn t need any special knowledge about the system The owner as the system user not only doesn t need but cannot make any adjustments of the system The adjustment can be made only by authorized workshop ATTENTION The manufacturer is not liable for damages arisen as a result of improper set installation and use of improper materials parts components and assemblies The opening of driver cover or seal damage may void the warranty Warranty seal SEC ECO rev 1 2 EN page 3 37 2 RECOMMENDATION CONCERNING THE ASSEMBLY Method of connecting the components according to picture 1 All connections should be made by removed fuses All connections have to be properly soldered and insulated The staff making assembly and ad
20. he diagnosing of arisen problems with installation We can choose diagnosing from OBD system with the use of additional interface and diagnosing of the driver injectors and the installation The diagnosing from OBD allows to delete the lit indicator Check Engine i e delete the OBD errors on the car computer 4 7 1 OBD diagnostics After connection SEC ECO to OBD through the interface appear additional options 4 7 1 1 Protocol and correction indicator OBD KWP 2000 Shot 471 Long 4 7 1 2 OBD error check Available buttons Refresh error history Erase errors and the tab READ OBD which activates additional window with display all information OBD After click the button Read errors we obtain in the window the information about errors reported by OBD system Diagnostics OBD M Errors Description Erase errors P0115 Engine Coolant Temperature Circuit Malfunction P0230 Fuel Pump Primary Circuit Malfunction Refresh error history P0350 Ignition Coil Primary Secondary Circuit Malfunction P0460 Fuel Level Sensor Circuit Malfunction Read OBD The OBD system saves car parameters at the moment when the error apears The data from this event are called freeze frames To see them click twice given error and additional window will be displayed OBD readings OBD readings show much more parameters showing also corrections which SEC ECO reads from OBD main line
21. is moment fully automatic mode is started Parameters Mixture adjustment Osclloscopes Diagnostics Adjustment Idle injection time comection ms Characteristic Points Autoadaptation x o y Edit x 50 0 P i i a Lj 3 450 40 0 T cL 35 0 gt fos WoL 50 L Ep i T Jad n oL _ 1 C OF m m n i a E 1505 a2 y z i E part i D E B cc s yt i m 50 LEE T E m rr r i Ta 5 0 m P F i 10 0 15 0 gt I 20 0 i 75 0 i 1 2 24 3 6 46 6 0 7 2 E4 35 10 6 12 0 13 2 13 2 Injection time ms Calibration mode Commands O Manual Oo Semi Auto E Auto ATS BD Erase petrol Erase gas Enter comection Car is going few kilometers on petrol during it is collecting points of characteristics and is creating the petrol map After collecting all necessary data ECU is automatically switching to gas ECU is starting collecting points to the map of gas and automatically entering necessary corrections This mode is a constant mode and is active all the time It s taking care of perfect selection of fuel mixture parameters 4 6 Description of the tab OSCILOSCOPES 4 6 1 Overall time base in seconds Other parameters depend of selected oscillograms and facilitate their observations SEC ECO rev 1 2 EN LECHO page 29 37 4 7 Description of the tab DIAGNOSTIC The program tab enables t
22. justment should be trained for this purpose a Sy The injection nozzles should be always appropriately chosen for horsepower of the car Table1 5 1 In case of too big nozzles the car can have too large combustion and too rich mixture 5 2 In case of too small nozzles the car can have too little power and too lean mixture Attention The program will inform by appropriate message if the nozzles are beyond the adjustment range 6 The pressure should be always set appropriately at idle with vacuum connected to a regulator recommended pressure is 1 4bar for LPG and 2 0 2 2 for CNG 2 2 SHORTENED INSTALLATION OF GAS INJECTION CONTROL SYSTEM SEC ECO SEC ECO rev 1 2 EN page 4 37 BA EA0112 a WHe JOSUa5 jaA81 ZVDOLNVY VMINOHLN313 OHH Josuas ameadwaL Dd ANL NYH9YId NOILOANNOO UnmTHEA PIDJIUEII u JaN SEO sss uoniuBi es C O a VF __ jeubrs Wad WOQWEe WAJ AZ JQ BSS OES WOU AZ z OW Lip i a FUUG gae j agod apque JIN H0SNJS dW g m WUNNIBA POUE EU J s o alu HED My Jaroa Eey Pay ny _ 5 NO s442 OL ge a sJopalul agaa SEC ECO rev 1 2 EN LECHO ELEKTRONIKA AUTOGAZ page 5 37 Type of injection Power 1 cylinder KM Sequential Half sequential Fullgrup LPG nozzle diameter mm
23. l inform about it with the appropriate massage Order of operations Go to the tab ADJUSTMENT MAP and choose adjustment mode OBD CORRECTION Start the drive On the chart while adjustments are made the pink line will change its colour into black The process will be finished when the line will become black in the whole range of engine work All made adjustments will be saved automatically in driver s memory Disconnect the interface from the driver and OBD socket finishing the process of adjustment 4 2 Adjustment from the vacuum ATTENTION This adjustment is possible only with interface OBD2 In case of this option connect the interface to the vehicle vacuum system sticking the pressure sensor to the system with the help of cable set and tee attached to the interface Order of operations Go to the tab ADJUSTMENT MAP and choose adjustment mode from underpressure Switch over the car to petrol and collect the petrol map which is visible in the form of red dots Then switch over to gas and collect similarly the gas map pictured in the form of green dots The more dots we collect on the map the more precisely the driver will be programmed After finishing this activity click button APPLY ADJUSTMENTS The adjustments will be automatically applied and saved in driver s memory In order to increase the accuracy it is necessary to make the mapping several times on gas and observe if after adjustments the gas curve agrees with the
24. oad The shift is automatically adjusted during the auto adaptation It s the second main driver parameter It should be so adjusted that petrol injection time during the work on gas as well as during the work on petrol is equal Then the petrol computer won t change the time of petrol injections at idle The shifting always sets itself as the second after well adjusted parameter described in the instruction as LPG mixture enrichment Principle of manual setting Switch over the power to petrol wait a minute and then save the injection time of petrol Tb1 then switch to gas power and once more save the injection time of petrol Tb2 Shifting Tb2 Tb1 It is necessary to adjust injector nozzles and pressure at idle so that shifting is positive 4 5 2 Standard map switching on the map enabling enrichment of mixture in different ranges of flat mode of engine operation in the form of diagram in the map window remains the correction of idle injection described in foregoing item In addition it is visible the map window with the range of corrections 20 to 50 and to 90 in the turbo mode Parameters Mixture adjustment Oscilloscopes Diagnostics Adjustment Idle injection time correction ms j a Aeston a tae l Injection time Revolutions min ms pare i 0 0 1000 4 2000 3000 4 4000 5000 e000 6000 40 0 2501 Predefined settings Standard 18 ms 6000 RPM Se
25. on of gas injection time mapping mode during the drive It is created the curve of drive on petrol then curve of drive on gas and the correction is calculated from the difference The approval of correction Approve correction causes the shift of gas to petrol curve The mapping should be made repeatedly in order to obtain better exactness Start from mapping on petrol We make it to the moment when the curve stops to change the shape To obtain this the car should be driven in the full soeed range After petrol mapping red colour switch over to gas and repeat mapping to obtain green gas curve Then click the button Approve correction to adjust the gas curve to the petrol curve Parameters Mixture adjustment Oscilloscopes Diagnostics Adjustment Idle injection time comection ms Characteristic Points Autoadaptation x 0 2 Edit x 50 0 450 L 40 0 35 0 0 0 250 20 0 15 0 m m 0 0 dep pasueapy delu pAPpue31s ER TA m m DU ae wam 4 0 E Mixture enrichment 10 0 15 0 gt 2 24 3 6 48 6 0 72 5 4 28 10 8 12 0 13 2 13 2 Injection time ms Calibration mode El ea EM sea S ao eT GED During mapping gas and petrol curves can be cancelled with the use of buttons under the diagram 4 5 6 ATS Adaptive Tuning System After the end of the autoadaptation on idle RPM please start the ATS mode and ECU will switch to petrol From th
26. ry to adjust minimal time for filter activation minimal rom to activate if jerking is from 1700RPM adjust lower rpm of about 200 and a filtration constant je larger the constant the greater filtration this parameter should be adjusted during the drive and checking the effects 4 8 4 Correction from the gas temperature M Correction according to gas temperature Off Temperature C f 10 f lS 20 2 at Correction C f D f The tab enabling making own percentage correction of gas mixture enrichment depending on the actual gas temperature 4 8 5 Correction from the reducer temperature M Correction according to reducer temperature Off Temperature C 25 30 35 40 50 60 70 Correction 0 0 0 D 0 0 0 The tab enabling own percentage correction of gas mixture enrichment depending on the actual reducer temperature water temperature 4 8 6 Injectors lubrication Injectors lubrication op Petrol injector work time 300 Lubrication repeating time 6 After switching this function gas injector turn off and petrol injectors turn on after specified period of time Lubrication repeating time 4 8 7 Enrichment from pressure sensor Enrichment from pressure sensor M Off Pressure bar 0 8 1 0 1 2 ee 1 8 ay AM 2 5 Enrichment 0 0 a 0 0 0 a 0
27. shold will follow double short sound signal itis necessary to keep up the above atmospheric pressure limits which is 1Bar the value of 1 5Bar shouldn t be exceeded the parameter is set by auto adaptation 7 Delayed return ms time after which follows the return of driver from gas to petrol power after detection of too low pressure on injection rail important by cars with turbine where this time should be extended standard is 1 second 1000ms 8 Minimal gas temperature if this option is chosen it will follow the switching from gas to petrol power by temperature drop of gas below the set temperature 3 4 Description of the tab AUTO ADAPTATION automatic adjustment of gas installation lt lt x Leave the engine idling Hozzle status Auto adaptation tab view Command display box information command box necessary for appropriate auto adaptation follow the instructions Start Abort the button starts the process of automatic driver adjustment after it is pressed the adjustment shouldnt be interrupted The interruption at any time will cause the necessity of new auto adaptation Status of the nozzles The information concerning the nozzles if they aren t placed in the adjustment range the appropriate information will be displayed If the nozzles are chosen properly it is signalized with information Appropriate nozzles size and the cursor is in the dark green box If the nozzles are
28. t pasueapy dew puepueys Long injections 30 ms 6000 RPM Set Low revolutioris engine 18 ms 5000 RPM Set Set Mixture enrichment High revolutions engine 20 ms 9000 RPM ms a 20 aise aa ss ae s eser ae ee ee aa ae es 2 0 8 Save Cancel r Calibration mode BM Maa Bi Semit aoar mM os the change of values on the map is possible after click in the diagram box or selection lower edition windows with entered values ATTENTION Several values can be selected at the same time l The buttons 5 1 1 5 are for quick change of value for given percentage up or down 2 The button Edit characteristic points is for scale change of injection opening range on the horizontal axis It is possible to choose in it the settings named respectively the button Enter the changes will be saved 4 5 3 Advanced map switching on the map which enables the enrichment of mixture in different ranges of engine work in the form of table the value changes follow after click the chart with value or selection of several charts and click ENTER ATTENTION it is possible at the same time to select several values with the whole map field o 1000 2000 3000 4000 5000 sooo 6000 15 20 3 0 45 6 0 8 0 10 0 12 0 14 0 16 0 18 0 18 0 The function of advanced map is identical as by standard map the differ
29. tch 3d kind of sensor increasing or decreasing 4 Switch audio signal allows to switch on off the audio signalization of driver operation 5 Regulator s temperature sensor select from two sensors S and K M sensor K M has the resistance 5kQ sensor S has the resistance 2kQ 6 Reducers vacuum the system can work when vacuum is connected or disconnected it is always recommended to connect vacuum to the reducer Thanks to it it s possible to obtain lower gas pressure during idling on the injector rail the parameter is set by auto adaptation 7 Lambda probe show or hide lambda probe Switching to gas Switching to gas Switching to gas temperature C 135 Injector pre heating for T Switching to gas rpm E al Cylinder switchovesfs 1 Y Delay of switeMing to gast 3 00 Start on gf On Y D 2 G OIOJIO 1 Temperature of switching to gas reducer temperature which enables switching to gas the temperature shouldn t be set below 30 C Engine rpm by switching to gas rom minute by which follows the switching to gas Delay in switching to gas time between connection of coil on the reducer and starting the gas injectors necessary for filling the installation with gas Q 4 Injectors heating the switching of this option results in connection of gas injectors before the switching to gas Thanks to it is avoided the unequal start of injectors in winter conditions The values are set from small
30. ter depends on the injector speed and is modified by the box of injector choice 2c Full opening of injector time of full current impulse opening the gas injector the range of 2ms 8ms shouldn t be exceeded because it threatens with damage of injection coils or free opening of injection 2d Proportional upholding the proportional upholding current of injector after switching off the constant voltage injector coil in relation to entire current range switching This parameter depends on the injector coil resistance and is modified by the box of injector choice 3 by small resistances it is necessary to keep the range of 25 below 1 50 to 45 by large resistances above 80 2e Delay of gas injection in relation to petrol it is the time counted in milliseconds of delayed gas injection in relation to petrol injection standard is 2ms this parameter is modified by the choice of injector Kind of reserve slide Select from the following types of reserve sensors sensor 900hm sensor 20kOhm sensor 50kOhm increasing and decreasing sensor for CNG manometer Additionally you can choose own definition and then will be displayed the following setting window Level sensor settings x Own definition window parameters of reserve sensor 3a voltage value actually measured by the central 3b time in seconds periodically refreshed measurement result 3c threshold scale switching of level indicator on the swi
31. too small it is signalized with information TOO SMALL NOZZLES and the cursor is in the red box If the nozzles are too big it is signalized with information TOO BIG NOZZLES and the cursor is in the red box The beginning of auto adaptation is possible only in case of proper nozzles 4 5 Description of the tab ADJUSTMENT MAP Adjustment mode idle injection time comection ms 0 2 4 5 1 Easy mode there are only two parameters to choose percent enrichment of mixture and correction of idle injection time ms 1a Percent enrichment of gas mixture Percent enrichment of gas mixture by the load is a main parameter which allows to adjust the transmission of gas quantity to the cylinders The enrichment is automatically adjusted during the auto adaptation The parameter can have a negative value but when it is too high for example below 10 it means wrong chosen injector nozzles it is necessary to replace them to smaller If the parameter is bigger than 40 it is necessary to replace the injector nozzles to bigger because the car can have to little power If in the car appears from the mixture check engine it s too lean or too rich it s necessary to adjust with the use of this parameter if we don t use the map After the change of enrichment check if the shift is well adjusted 1b Correction of the idling injection time The shift is the enrichment leaning of mixture at idle without the l
32. ver Diagnostics OBD Errors Description Erase errors P0115 Engine Coolant Temperature Circuit Malfunction P0230 Fuel Pump Primary Circuit Malfunction Refresh error history P0350 Ignition Coil Primary Secondary Circuit Malfunction P0460 Fuel Level Sensor Circuit Malfunction Read OBD Possibilities of the tab showing errors from SEC ECO system cancellation of errors if they occur viewing of gas computer error description 4 7 3 Diagnostic of injectors x Installation diagnostics Switch LED test Buzzer test Valves test The window allows to make the test of gas injector coils by measuring their current 4 7 4 Installation diagnostics The window allows to make some tests Switch LED test checking of state of PBX switch and gas level indicators After starting the test the switch diodes are off to the reserve state red diode and then in the program appears the switch view and from this moment the diodes switch on one after another After switching the last green diode the switch in the program disappears the test is finished The test consists in observation if all switch diodes switch synchronously with the switch in the program Buzzer test checking of buzzer After starting the test the lettering changes its colour to red and the buzzer sounds short long and short The test consists in listening if the buzzer squeaks Valves test checking of gas valves
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