Digital Air/Fuel Ratio Meter User Manual
Contents
1. has not passed Windows Logo testing to verify its compatibility with Windows XP Tell me why this testing is important Continuing your installation of this software may impair or destabilize the comect operation of your system either immediately or in the future Microsoft strongly recommends that you stop this installation now and contact the hardware vendor for software that has passed Windows Logo testing Continue Anyway 8 The last screen will inform you that the unit has been successfully installed Click Finish The unit is installed and ready to use Note the installation process can take up to 5 minutes 3 2 Updating Firmware 1 Connect the LM 2 to your computer with the provided USB cable 2 Power up the LM 2 Note The unit is not powered up with the USB connector 3 Launch LM Programmer The LM Programmer application can be launched from Start gt Programs gt LogWorks2 gt LM Programmer from the Windows task bar 4 On the very first tab of LM Programmer you will see a button labeled Update Firmware click this button PLM Programmer Version 3 22 TA iel xj Trouble Codes AnsiogOhtt AnsiogOe2 Info Protocol Channels Inputs T 2003 2007 innovats Technelegy inc Devoe Type LM Z amwoe Versioni T 00 Connected to port USE Processor Version MT1B5C 24 Fiesse gie hiultipber to calculate AFA from Lambda lus device 8 micia TH ehe seine cir Max E characterz na T Gasoline2. 99 22 99 22 99 22 99 22 765 0 5177 27 655350 0 802 75 100 0 99 22 100 0 100 0 100 0 100 0 100 0 100 0 100 0 1 0 1 0 1 0 100 0 255 0 215 0 1 0 1023 0 65535 0 65535 0 1023 0 1023 0 99 22 99 22 99 22 99 22 99 22 LM2 Manual 1 0 doc 41 SHRTFT32 02 Fuel Trim 3 2 02541 02 Sensor NB 4 1 SHRTFT41 O2 Fuel Trim 4 1 02842 O2 Sensor NB 4 2 SHRTFT42 O2 Fuel Trim 4 2 EQ RAT11 WideO2 Equiv Ratio 1 1 lambda WO2S11 WideO2 Voltage 1 1 Volts EQ RAT12 WideC2 Equiv Ratio 1 2 lambda WO2S12 WideO2 Voltage 1 2 Volts EQ RAT21 WideO2 Equiv Ratio 2 1 lambda WO2S21 WideO2 Voltage 2 1 Volts Name Description Units EQ RAT22 WideC2 Equiv Ratio 2 2 lambda WO2822 WideO2 Voltage 2 2 Volts EQ RAT31 WideO2 Equiv Ratio 3 1 lambda WO28S31 WideO2 Voltage 3 1 Volts EQ RAT32 WideC2 Equiv Ratio 3 2 lambda WO2S32 WideO2 Voltage 3 2 Volts EQ RAT41 WideC2 Equiv Ratio 4 1 lambda WO2S41 WideO2 Voltage 4 1 Volts EQ RATA42 WideC2 Equiv Ratio 4 2 lambda WO28S42 WideO2 Voltage 4 2 Volts WBEQ RAT 11 WB O2 Equiv Ratio 1 1 WBO2S11 WB O2 Voltage 1 1 mA WBEQ RAT12 WB O2 Equiv Ratio 1 2 WBO2S12 WB O2 Voltage 1 2 mA WBEQ RAT21 WB O2 Equiv Ratio 2 1 WBO2S21 WB O2 Voltage 2 1 mA WBEQ RAT22 WB O2 Equiv Ratio 2 2 WBO2S
3. LM 2 Digital Air Fuel Ratio Meter User Manual A Warning The Oxygen Sensor used in this device gets very hot in operation Do not touch the hot sensor Do not let a hot sensor touch a combustible surface Do not use the sensor with or near flammable liquids or gases Failure to heed these warnings may result in severe burns explosions or fires When installed in the exhaust the oxygen sensor MUST be connected and operating with the LM 2 whenever the car is running An un powered oxygen sensor will be quickly damaged when exposed to hot exhaust gases TABLE OF CONTENT i MZ 3 ici Maniscalco 5 lo Ibi oct 5 1 9 Conliguration iMEni Screen a eo 7 I MEN Sr eoe EDU T 8 2 AFURI CUD DEO 8 ZN SISOS QMO REESE 8 22 x96nsor PICCHI loan ea 9 2 9 Calibration Senedule s lalui rata 11 Oe JProgramimigg Ine CNE alain 12 3 1 Installing software and Connecting the LM 2 to computer ii 12 o2 dpdatiho EIImWOFE suicides tes totes ts reote sud ede aio siena 13 3 3 Programming the analog QUtputs ii 14 3 3 1 Advanced output programming nennen nnne nnnm nnne nnn ann nnns 15 qu OBS este tue tL e LR ME e Le c Me ac MM EE ET 16 4 1 Locate the OBD II Connector in your vehicle rennen 16 4 2 Selecting Channels on the LM 2 i 17 4 3 Selecting Channels with the LM Programmer software i 18 4 4 OBD II Channel Speed
4. B an L i Lr CD rm pu Rm 3 na T LL un FUEL1 DL RPM x 1000 This extra resolution comes at the expense of our Low Priority inputs These channels all share the ECU bandwidth once used by VSS alone But this lets us have high resolution critical data combined with lower priority lower resolution data in the same log 4 6 Check Vehicle Trouble Codes on the LM 2 1 To view your vehicle trouble codes press and hold the Mode button to go into the Configuration Menu Screen 2 Select OBD II and press the Enter button 3 Select Get DTC s A list if any of error codes will be displayed on the screen To see the specific meaning of the error code select it and click Enter Click Enter again to return to the list 4 Press Mode or Cancel to exit 4 7 Clear Vehicle Trouble Codes on the LM 2 1 To clear your vehicle trouble codes press and hold the Mode button to go into the Configuration Menu Screen 25 Document 31 0008 LM2 Manual 1 0 doc 2 Select OBD II and press the Enter button 3 Select Clear DTC Codes and press the Enter button 4 8 Check and Clear Vehicle Trouble Codes with LM Programmer 1 Connect the LM 2 to the vehicle via the OBD Il connector 2 Power up the LM 2 Note The unit is not powered up with the USB connector 3 The LM Programmer application can be launched from Start gt Programs gt LogWorks2 gt LM Programmer from the Windows task bar A small dialog box will appear indic
5. LM 2 Reset Cabbealion 13 Document 31 0008 LM2 Manual 1 0 doc 5 Select the firmware file with the dld extension 6 The software will now prompt you to put the LM 2 in Boot Mode In order to accomplish this you must power the unit off Next while pressing the Mode button on the LM 2 power the unit back ON The LM 2 s display will show that it is now in Boot Mode Press the OK button on the software to start the firmware reflash LHConfig322 a X You are about to upload firmware to the LM 2 In order to do this the unit must be in Boot Mode Turn off the power to the unit press and hold the Mode button and turn power back on You may release the Mode button when the words Boot Mode appear on the LCD display Once in boot mode select OK to continue 7 You may disconnect and exit out of the software once the firmware update is finished 3 3 Programming the analog outputs 1 Connect the LM 2 to your computer with the provided USB cable 2 Power up the LM 2 Note The unit is not powered up with the USB connector 3 Launch LM Programmer The LM Programmer application can be launched from Start gt Programs gt LogWorks2 gt LM Programmer from the Windows task bar 4 Select one of the Analog output tabs The Analog output page looks like this LHM Programmer Version 3 22 ww L 0 50 1 00 Lambda 1 50 74 14 7 airfuel atio 22 1 0 000 Volt at Lambda 10500 and use
6. Lambda use airfuelratio 5 000 Volt at Lambda 323 Sensor C Seren Z Factory Defaults Advanced 14 Document 31 0008 LM2 Manual 1 0 doc This shows the analog output voltages versus Lambda for one of the two analog outputs The graph display is automatically scaled to the selected voltages For each output you can specify a minimum and maximum lambda value and the associated voltages Below the minimum and above the maximum lambda values the output voltages stay constant at the associated programmed voltage By selecting the use Air Fuel Ratio button you can program the curve by AFR instead of Lambda This does not change the programming only the representation of the data When programming by AFR the LM Programmer converts the number to Lambda before programming the LM 2 Click the Program button to download the new data into the LM 2 Once the unit is programmed the Program button will grey out Note for Dual A F channel units You can program each analog output to represent the data from sensor 1 or 2 by selecting the appropriate radio box Factory Programmed Defaults Single Channel A F units Analog Output 1 is programmed to output between 0 V for an AFR of 7 35 gasoline and 5 0V for an AFR of 22 39 Analog Output 2 simulates a typical narrow band oxygen sensor Dual Channel A F units Analog Output 1 and Analog Output 2 are programmed to output between 0 V for an AFR of 7 35 and 5 0V for an AFR
7. MIL clear RUNTM Run Time O2811 O2 Sensor NB 1 1 SHRTFT11 O2 Fuel Trim 1 1 O2812 O2 Sensor NB 1 2 SHRTFT12 O2 Fuel Trim 1 2 O2821 O2 Sensor NB 2 1 SHRTFT21 O2 Fuel Trim 2 1 O2822 O2 Sensor NB 2 2 SHRTFT22 O2 Fuel Trim 2 2 O2S31 O2 Sensor NB 3 1 SHRTFT31 O2 Fuel Trim 3 1 02832 O2 Sensor NB 3 2 Units RPM 0 0 oL degBTDC g s kPa km h degC degC PTO HOLS OL on no n no no n no n kPa kPa kPa lambda 0 0 no n no 0 0 o o o no no no no Pa UPS DNS OFF o kPa degC Volts 0 0 MIL DTCs km hours 0 0 km WUs mins Volts 0 0 no Volts 0 0 no Volts 0 0 no Volts 0 0 CAI Volts 0 0 CAI Volts 0 0 Min 0 0 100 0 0 0 64 0 0 0 0 0 0 0 40 0 40 0 0 0 0 0 0 0 100 0 100 0 100 0 100 0 100 0 100 0 100 0 100 0 0 0 0 0 0 0 1 999 0 0 0 0 100 0 100 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 8192 0 8191 0 0 0 0 0 0 0 0 0 0 0 40 0 65 535 0 0 0 0 0 0 1023 0 0 0 0 0 0 0 1 275 100 0 1 275 100 0 1 275 100 0 1 275 100 0 1 275 100 0 1 275 Document 31 0008 Max 10230 0 100 0 63 5 655 35 255 0 255 0 215 0 215 0 1 0 1 0 1 0 99 22 99 22 99 22 99 22
8. install the LM 2 sensor up stream of the outputs of the smog pump If this is not possible temporarily disable the smog pump by removing its drive belt 6 4 Single Cylinder Engines These kinds of engines are difficult to measure at the tail pipe using an Exhaust Clamp The oscillations of the exhaust gas are so large that a lot of outside air enters the exhaust and prevents correct measurement Sometimes it helps to temporarily wrap a piece of heat resistant cloth around the exhaust clamp to prevent outside air from entering the exhaust 6 5 Diesel Engines Diesel Engines and gas turbines run at wide open throttle at all times They do not have a throttle but regulate power by the amount of injected fuel The LM 2 can still be used but measurements at idle will read as lean 6 6 Sensor Timing Errors 33 Document 31 0008 LM2 Manual 1 0 doc These errors are typically encountered when the sensor does not have outside air available as reference gas If you encounter this error restart the LM 2 and operate the sensor in free air remove from exhaust If you still encounter this error the sensor may be bad and needs to be replaced Heplacement sensors are available from your nearest VW dealer under the VW part number 021 906 262 B or direct from Innovate Motorsports part number 3737 Sensor timing errors are also common when the sensor overheats Relocate the sensor further downstream in the exhaust and or install a Heat Sink Bung e
9. product warranty Disclaimer INNOVATE MAKES NO OTHER EXPRESS OR IMPLIED WARRANTY WITH RESPECT TO YOUR INNOVATE PRODUCT OTHER THAN THE LIMITED WARRANTY SET FORTH ABOVE No Innovate dealer agent or employee is authorized to make any modification extension or addition to this warranty unless enforceable or unlawful under applicable law INNOVATE DISCLAIMS ALL IMPLIED WARRANTIES INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY NONINFRINGEMENT AND FITNESS FOR A PARTICULAR PURPOSE AND THE LIABILITY OF INNOVATE IF ANY FOR DAMAGES RELATING TO ANY ALLEGEDLY DEFECTIVE PRODUCT SHALL UNDER ANY TORT CONTRACT OR OTHER LEGAL THEORY BE LIMITED TO THE ACTUAL PRICE PAID FOR SUCH PRODUCT AND SHALL IN NO EVENT INCLUDE INCIDENTAL CONSEQUENTIAL SPECIAL OR INDIRECT DAMAGES OF ANY KIND EVEN IF INNOVATE IS AWARE OF THE POSSIBILITY OF SUCH DAMAGES Some states do not allow limitations on how long an implied warranty lasts or the exclusion or limitation of incidental or consequential damages so the above limitations or exclusions may not apply to you 37 Document 31 0008 LM2 Manual 1 0 doc Appendix C Connectors 1 Sensor 1 2 optional Use IPUMP SENSE PUMP SHTR VBAT SENSE SHIELD GND SHTR VBAT 5 Tip Sensor 1 is near the back of the unit and marked with a circled 1 2 OBD II D gt Use GND VBAT J1850 J1850 ISO K ISOL CAN H CAN L AIt CAN H 0 AIt CAN L 0 0 NDOUDSWWN Notes The Alt CAN Bus
10. run blended fuels where you don t know the stoich value you look at Lambda and adjust to 10 20 rich depending where your max power is The value of richness required by an engine for max power does change relatively little fairly independent of fuel But if for example you adjust an engine running methanol to 12 5 AFR you would be running so lean that it would probably not even run The LM 2 can be used to read Air Fuel Ratio AFR or Lambda for an engine For gasoline driven engines the theoretically optimal air fuel ratio for efficiency is 14 7 pounds of air for every pound of fuel At this ratio theoretically all available oxygen in the air combines with all available fuel This ratio is called the stoichiometric ratio otoichiometric for different fuels are as follows Gasoline 14 7 L PG Propane 15 5 Methanol 6 4 Ethanol 9 0 CNG 17 2 Diesel 14 6 The measurement Lambda is the actual air fuel ratio over the stoichiometric ratio A Lambda measurement of 1 equates to the air fuel ratio of 14 7 for gasoline engines When Lambda is less than 1 the engine runs rich i e unburned fuel exists in the exhaust stream If lambda is greater than 1 the engine runs lean i e free oxygen 0 is present in the exhaust Depending on the engine maximum power is typically delivered when the engine runs slightly rich for example at lambda values of 0 8 to 0 9 for most engines This instrument provides a means to measure the actual a
11. the new choices and then the overall sample rate of the current settings can be observed using the blinking vehicle light on the LM 2 It is then up to you the user to decide what is an acceptable balance 4 5 Set the Priority of OBD II Inputs Optional Next to each Input Selection on the Inputs page In LM Programmer there is a small checkbox labeled Low Priority This option is also available when selecting channels through the LM 2 s display ane Inactive ane Inactive Low Priority 15 Low Priority 16 Channel 1 Priority Connected J1850 v Pw GM rara 1 Low Connected I0 141 21 Document 31 0008 LM2 Manual 1 0 doc Repeat A oince it is often a battle getting an ECU to deliver data fast enough it is reasonable to ask why one would lower the priority of a channel The simple answer is some ECU values just do not change very fast So reading those values less often means that values that do change quickly can be read more often To understand how this works let s take a look at how the LM 2 normally reads values Head 1st As we can see from the diagram on the right values are vang read from the ECU one after another in a loop Since takes the ECU has certain amount of time to respond to each query the longer the list of channels the longer it takes to complete the loop Obviously the longer to takes to complete the loop the larger the time gap between each read of Repeat i
12. wideband controller with a built in OBD Il scan tool RPM input four analog inputs MTS serial I O SD memory card recording and two analog outputs per wideband channel The following screens will help you get familiar with the unit Front Mode Button Press once to cycle through channel display screens Press and hold to enter menu Cancel Button Press to cancel ou of menu or to stop recording Record Press once to LCD Display Up Arrow scroll through available channels Move through menu Enter Accept an entry in the menu Screen Down Arrow scroll through available channels Move through menu record or press again to stop recording Press and hold to force a new log Left Inductive Clamp MTS Serial IN MTS Serial OUT 3 Document 31 0008 LM2 Manual 1 0 doc Top SD Memory Card Slot USB Connector Sensor Input 2 Enabled with the Dual Channel version Analog Cable Sensor Input 1 Power OBD II Connector 4 Document 31 0008 LM2 Manual 1 0 doc 1 1 Main Screen There are 5 different screen view options These can be cycled by pressing the Mode button One Channel Two Channels Or Sensor a UO Sensor z OBO RPM 0 98 0 99 2470 Lambda Lambda 15 45 03 Four Channels One Channel Line Graph ODEO SPARE ADV DED AT oo RPM 64 0 40 100 00 NEOLOAO PCT OBO SARTFTS 15 531 15 One Channel Fill Graph DEC RFH ra 1 2 Status Bar The bottom edge
13. 822 WB O2 Voltage 2 2 mA WBEQ_RAT31 WB O2 Equiv Ratio 3 1 WBO2S31 WB O2 Voltage 3 1 mA WBEQ RAT32 WB O2 Equiv Ratio 3 2 WBO2S32 WB O2 Voltage 3 2 mA WBEQ RAT441 WB O2 Equiv Ratio 4 1 WBO2S41 WB O2 Voltage 4 1 mA WBEQ RATA42 WB O2 Equiv Ratio 4 2 WBO2S42 WB O2 Voltage 4 2 mA CATEMP11 Catalyst Temp 1 1 degC CATEMP21 Catalyst Temp 2 1 degC CATEMP12 Catalyst Temp 1 2 degC CATEMP22 Catalyst Temp 2 2 degC o Volts 0 0 o Volts 0 0 o 0 0 0 0 0 0 0 0 0 0 0 0 Min 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 lambda 0 0 128 0 lambda 0 0 128 0 lambda 0 0 128 0 lambda 0 0 128 0 lambda 0 0 128 0 lambda 0 0 128 0 lambda 0 0 128 0 lambda 0 0 128 0 40 0 40 0 40 0 40 0 Document 31 0008 100 0 100 0 100 0 1 999 7 999 1 999 7 999 1 999 7 999 1 999 7 999 1 999 7 999 1 999 7 999 1 999 7 999 1 999 7 999 1 275 1 275 Max 1 999 127 996 1 999 127 996 1 999 127 996 1 999 127 996 1 999 127 996 1 999 127 996 1 999 127 996 1 999 127 996 6513 5 6513 5 6513 5 6513 5 99 22 99 22 99 22 LM2 Manual 1 0 doc Appendix E Error Codes and Troubleshooting Tips Code Short in sensor Replace sensor Error 2 Heater circuit open Damaged se
14. Channels Tools View siti A I aa MM E BH Session length 6 min 33 38 sec Im 61 6 28 0 degBTDC 19 gis 60 1 kPa 28 8 km h a D r Tuo e Te x t E Mt cr LL T TP_ABS TARG Even if we zoom in to a closer time scale the data is quite smooth Performance is controlled by two things e The Connection Speed e ECU Responsiveness The Lexus in the first example is using ISO 9141 and 10 4K bits per second The Saturn is using ISO 15765 CAN at 500K bits per second So it is easy to understand the difference in performance However the responsiveness of the ECU also can be a significant factor Consider this log from a 2006 Pontiac GTO 20 Document 31 0008 LM2 Manual 1 0 doc Co OT 1 GTO alt log Session 1 P E ml x File Edit Sessions Channels Tools View ally i I aa Gr E E Session length 2 min 31 55 sec 31 75 sec dhe 12390 RPM 267 oF GM 0 000 OL 1 000 lambda 26 23 mins S69 degl gt 10 LOAD PCT RPM x 1000 Like the Saturn it is connected using 500K bit CAN but we can begin to see some steppiness in the RPM channel with only 8 channels being collected In addition some values like the Calculated Load are courser still Presumably because the ECU itself is only calculating them a few times per second With this in mind it is probably best to assign channels only a few at a time and then select Program The ECU will disconnect reconnect with
15. This warranty shall terminate and Innovate shall have no obligation pursuant to it if i your Innovate product has been modified or repaired in a manner not previously authorized by Innovate in writing ii the identification markings on your Innovate product have been removed defaced or altered iii your Innovate product was subjected to accident abuse shipping damage or improper use iv your Innovate product was not used or configured as specified in the product manual or v your Innovate product was subjected to operating conditions more severe than those specified in the product manual Exclusions From This Warranty Oxygen Sensors are excluded from this warranty Repairs Under This Warranty In the unlikely event that your Innovate hardware product should prove defective during the warranty period contact Innovate Customer Support for a return material authorization RMA at 949 502 8400 Products returned for service must be securely packed to prevent damage and shipped charges pre paid along with proof of purchase and the return material authorization number to the Innovate repair location as instructed by Customer Service Innovate within a reasonable amount of time from its receipt of your product so shipped will ship to you at its option the repaired product or a new or reconditioned product of comparable or greater specified functionality All repaired or replacement products shall be warranted for the remainder of the original
16. ating that the program is looking for connected Innovate Devices then the main dialog should appear 4 Click the tab labeled Trouble Codes n LM Programmer Version 3 22 JI x Info Frotacal Lhannels Inputs Trouble Codes Analog Out 1 Analog Out 2 POOOO No DTCs reported Connected 150 9141 Clear and Refresh Standard Trouble Codes are listed both with a number and a description Manufacturer specific codes will generally just appear as a number though sometimes the general category can be identified You can request that the ECU clear the pending codes using the Clear and Refresh button at the bottom right corner of the page Note On some vehicles the ignition must be on but the vehicle not started for the Clear DTC request to be accepted 26 Document 31 0008 LM2 Manual 1 0 doc 4 9 OBD ll Basics OBD stands for On Board Diagnostics It represents a collection of industry and legislative standards for getting basic diagnostic information from passenger vehicles sold in the US since Model Year 1996 The Il means that this is the second attempt at standardizing across all makes and models OBD II standardized what type of information ECU s must provide but did not set a single standard on how the information should be communicated typically called a Communication Protocol or just Protocol or even the electrical characteristics of the communication link itself usually referred to a
17. d in plain English by the LM 2 Manufacturer Controlled DTCs are reported solely by number 28 Document 31 0008 LM2 Manual 1 0 doc 5 Analog Cable The provided analog cable has 14 stripped ends The wire assignments are as follows Analog Out 1 Lime Green Analog Out 2 Brown White Analog Out 1 Yellow Analog Out 2 Dark green Analog In 1 Purple Analog In 2 Grey Analog In 1 Black Analog In 2 Brown Analog In 3 White Analog In 4 Peach Analog In 3 Red Analog In 4 Orange RPM Black White RPM Blue 5 1 RPM Input The LM 2 has a direct tach signal input signal This input can be used to feed a signal from the negative lead of a coil ECU negative lead of an injector or ignition box i e MSD 6AL This tach signal can be feed to the RPM Black White wire The negative wire Blue can be connected to ground if a tach signal is not being registered 5 1 1 Enable Disable RPM Enabling the RPM channel will allow you to display the channel on the LM 2 and log it on the SD memory card Disabling the channel will do the exact opposite 1 Press and hold the Mode button to go into the Configuration Menu Screen 2 Select RPM and press the Enter button 3 You Will not have the option to Enable Disable RPM 5 1 2 Configure RPM Press and hold the Mode button to go into the Configuration Menu Screen Select RPM and press the Enter button Select Configure RPM and press th
18. e Enter button You will now have the option of selecting the Tach input source use the arrows to change the selection 0 is the input from the Analog Cable 1 is the input from the Inductive Clamp Press Enter TO 29 Document 31 0008 LM2 Manual 1 0 doc 5 You will not have the option to select the Polarity Rising Edge is the most common way to measure a tach signal If you find that your readings are very erratic you should change this setting to Falling Edge Press Enter 6 Select the RPM range Options are 10230 RPM or 20460 RPM Press Enter 7 Select Pulses per Rotation Below are two tables to aid in your selection Cylinder number and RPM calibrate number 4 Cyl engine Use also when using inductive clamp on spark wire or power wire of COP system of 1 cylinder only for all cylinder numbers Use also when using inductive clamp on spark wire or power wire of Waste spark coil of 1 cylinder only Waste spark system 1 coil for every 2 cylinders Cvii Number 2 Stroke of pulses Crank Cylinders Rotation Use also when using inductive clamp on spark wire or power wire of COP system of 1 cylinder only for all cylinder numbers Also use for rotary engine Use also when using inductive clamp on spark wire or power wire of Waste spark coil of 1 cylinder only Waste spark system 1 coil for every 2 cylinders Document 31 0008 LM2 Manual 1 0 doc Once the selection is made press Enter You will be broug
19. e cyl1 MAF Mass Air Flow MAP Manifold Abs Presure VSS Vehicle Speed Sensor ECT Engine Coolant Temp IAT Intake Air Temp PTO_STAT PTO Status FUEL1_OL Fuel Sys1 Open Loop FUEL2_OL Fuel Sys2 Open Loop SHRTFT1 Short Term Fuel Trim 1 LONGFT1 Long Term Fuel Trim 1 SHRTFT2 Short Term Fuel Trim 2 LONGFT2 Long Term Fuel Trim 2 SHRTFTS Short Term Fuel Trim 3 LONGFTS Long Term Fuel Trim 3 SHRTFTA Short Term Fuel Trim 4 LONGFTA Long Term Fuel Trim 4 FRP Fuel Rail Pressure FRP MED Fuel Rail Pressure FRP HIGH Fuel Rail Pressure EQ RAT Commanded Equiv Ratio LOAD ABS Absolute Load Value EGR PCT Commanded EGR EGR ERR EGR Error TP_R Throttle Position rel TP_B Throttle Position B abs TP_C Throttle Position C abs APP D Acc Pedal Position D APP E Acc Pedal Position D APP F Acc Pedal Position D TAC PCT Commanded Throttle EVAP PCT Commanded Evap Purge EVAP VP Evap Vapor Pressure AIR UPS Secondary Air DNS AIR DNS Secondary Air DNS AIR OFF Secondary Air DNS FLI Fuel Level Indicator BARO Barometric Pressure AAT Ambient Air Temp VPWR Control Module Voltage MIL Malfunction Indicator Lamp DTC CONT DTC Count MIL DIST Distance MIL active MIL TIME Hours MIL active CLR DIST Distance MIL clear WARM UPS Warm Ups
20. elect the number of OBD II channels to read A maximum of 16 channels can be selected It is recommended to start off with 2 to 3 channels to evaluate the speed at which the ECU delivers data Press Enter 5 You will now be able to scroll through all available channels and make your selection Note If you are connected the unit will filter and only display the available channels available by the ECU Press Enter PLEET EAT 6 Chose if the channel is Low or High Priority Please see section 3 5 of the manual Press Enter to move to the next channel 7 After all channels have been selected the unit will return to the main screen OBD II Protocol ot Connected Channel 1 Function 1 OBO RPM If a PID channel is not available for the particular vehicle the data will read 0 17 Document 31 0008 LM2 Manual 1 0 doc 4 3 Selecting Channels with the LM Programmer software 1 Connect the LM 2 to your computer with the provided USB cable 2 Power up the LM 2 Note The unit is not powered up with the USB connector 3 The LM Programmer application can be launched from Start gt Programs gt LogWorks2 gt LM Programmer from the Windows task bar A small dialog box will appear indicating that the program is looking for connected Innovate Devices then the main dialog should appear 4 The Inputs tab allows you to set the number of MTS channels to generate 5 Click the Inputs tab Only the number of channels selected on the Prot
21. hicles Fortunately the LM 2 can take care of most of this complexity automatically So from a user s point of view OBD II can primarily be considered on the basis of what is consistent and standard namely e The Connector e The Information Provided OBD II information comes in two basic flavors PIDs and DTCs PIDs or Parameter IDs represent real time measurements about the state of the power plant information such as RPM and ignition timing The definitive reference on these standard PIDs is the J1979 Standard last revised 4 2002 published by the SAE International www sae org Not all ECUs support all PIDs but the LM 2 understands and converts over 100 of the most common ones see Appendix B for a complete list DTOs or Diagnostic Trouble Codes are as the name implies problems reported by the ECU Codes can be Standard or Manufacturer Controlled An example of a standard code would be P0051 This code means HO2S Heater Control Circuit Low Bank 2 Sensor 1 for all OBD II vehicles But P1336 is in the non standard code range The exact meaning is up to the vehicle maker Without information from the car maker all we know from the code itself is that the beginning P13xx suggests that it is in the general category of Ignition System or Misfire The definitive listing of standard DTCs is J2012 last revised 4 2002 also published by SAE International All these standard DTCs are reported as both a number an
22. ht back to the main screen 5 2 Analog Inputs The LM 2 has 4 analog inputs for external 0 5V sensors Each input has a corresponding positive lead for the signal and a negative lead for the ground signal source It is important to wire both of these leads to get accurate measurements The LM 2 s inputs are differential A differential input does not measure a signal relative to electrical ground Instead it measures the relative voltage between two signals That is it does not measure the signal in relationship to ground but in relationship to the signal It measures the difference between them hence the name differential input Below you will find diagrams that should better illustrate the correct way to wire in external sensors Please note that the lead is signal positive NOT power _ Sensor _ Sensor Lu x Fe Sensor Ground Ground Ground 31 Document 31 0008 LM2 Manual 1 0 doc 6 Tips Tricks amp Troubleshooting 6 1 Air Fuel and Lambda The Stoichiometric AFR value is the AFR multiplier So for standard unblended gasoline its 14 7 If you set it to 14 7 the LM 2 display will show 14 7 AFR for Lambda 1 0 If you set it to 6 4 methanol the LM 2 will show 6 4 AFR for Lambda 1 0 You can look at Lambda as the percent of richness If running Lambda 0 85 12 5 AFR for gasoline you are running 15 rich For methanol 15 rich means 5 44 AFR That s where the value of Lambda comes in If you
23. iii 19 4 5 Setthe Priority of OBD II Inputs Optional nnne 21 4 6 Check Vehicle Trouble Codes on the LM 2 nnne nnne 25 4 7 Clear Vehicle Trouble Codes on the LM 2 nennen nnne nnn 25 4 8 Check and Clear Vehicle Trouble Codes with LM Programmer cccccssescceecesseceeeteeeseeeeeeeeeees 26 LU OBD Ilbasic t RT E 27 5 Ano Grr 9 ce T lalla 29 Oil S eU MU Cr 29 5 1 1 Enable DIsable BEP Ili eoe eno ideo edi uso Drs ad gad aks Cassie er ted 29 D2 Conligure RUM snella 29 o2 AnaslogINpulsaa ilaele 31 6 Tos Teks e TrOUDIESMOOUNG eR a ices deters hd De cedclunan Rienat Ab Pagan e nd aed Oluaae al ease 32 6 AIG Ueland AIG ae a ciccia 32 6 2 General measurement requirements i 33 6 3 Venicies witn sSMog pUMpsia aaa 33 6 4 Single CylinderEngines lla 33 6 5 Diesel ENgNesssanianalia ionica 33 b 0 Sensor PIMING ENOS 2 5 ees herria atea 33 6 7 Connecting the LM 2 to simulate a narrow band oxygen sensor i 34 APPENSEA Specilicalions srhe rsa ile isla eli 36 AppendiXB LimitedWarran cb ela de ia ue eer hoic ete o iot ave ete e eoe EE alal 37 APPpendyYeG GonnecioiSstiillcel ili slice 38 Append D Supported PID S unius lella iaia 40 Appendix E Error Codes and Troubleshooting Tips nnne 42 Ts FACVISIONMAISIONY MITT NENNEN 44 2 Document 31 0008 LM2 Manual 1 0 doc 1 LM 2 The LM 2 is a single or dual channel
24. indicator means that the 4 Analog Inputs are selected for logging Use see menus It is all or nothing The display will be blank if disabled i RS Ey E AR 0 MH The O indicates that an OBD II connection is active This indicator will blink at the relative sample rate which will vary on the number of channels selected and the vehicle s protocol The display will be blank if the unit is not connected to an OBD II port r 731 77 c 7 The blinking M indicates that MTS serial data is being generated This will blink at the relative MTS packet rate for comparison with the O indicator If the unit is not the head unit then this will only blink when packets are being received via the Serial In 6 Document 31 0008 LM2 Manual 1 0 doc connector 44 45 7 Last H indicates that the unit is the MTS head unit If the unit is not head this indicator will appear as a A SEM 3 7 FS 1 3 Configuration Menu Screen To enter the Configuration Menu Screen press and hold the Mode button Display Lambda Calibrate Sensors Enable RPM Enable Analog Inputs BD II eb Times Dato Navigating the Menu Enter Accepts Cancel Returns one menu level Mode Returns to Main Screen Arrows adjust selection or value Record has no effect When Mode is first pressed the following choices appear e Display AFR or Lambda The factory default setting is AFR e Calib
25. ir fuel ratio or lambda in the engine in operation directly from the exhaust For this a special wide band oxygen sensor is used to measure the lambda value derived from the oxygen content or lack thereof of the exhaust gases 32 Document 31 0008 LM2 Manual 1 0 doc 6 2 General measurement requirements The LM 2 measures the air fuel ratio by measuring the amount of oxygen in the exhaust for lean conditions or the amount of unburned or partially burned fuel for rich conditions You should correct for the following in order to get optimum results from the LM 2 1 An exhaust leak will allow oxygen to enter the exhaust stream and therefore will measure leaner than the engine is actually running For correct measurement air leaks in the exhaust MUST be prevented under all circumstances 2 Missing ignitions where the air fuel mixture does not ignite also pump unburned oxygen into the exhaust and cause the LM 2 to measure lean 3 The only circumstance where the LM 2 will measure richer than the engine is running is if the pressure in the exhaust tract is excessive and the engine is running on the rich side to begin with 6 3 Vehicles with smog pumps Older fuel injected vehicles with a smog pump actually inject air into the exhaust stream to aid their catalytic converter in the burn up of unburned or partially burned fuels This additional air will make the exhaust look leaner than the engine is running For an accurate measure
26. mber 3728 to sample exhaust gases at the end of the tail pipe Do NOT install the Bung below the 3 o clock or 9 o clock position Condensation can form in the exhaust pipe and permanently damage the sensor 6 o clock is the absolute worst position to mount the sensor N Wide band oxygen sensors like the one shipped with the LM 2 are designed to work with unleaded gasoline Use with leaded gasoline will significantly reduce the lifespan of the sensor The reduction is directly proportional to the metal content of the fuel and the tune of the engine In most cases a wide band sensor will provide accurate measurements somewhere between 50 hours and 500 hours with leaded fuel A WHEN INSTALLED IN THE EXHAUST THE OXYGEN SENSOR MUST BE CONNECTED AND OPERATING WITH THE LM 2 WHENEVER THE CAR IS RUNNING AN UN POWERED OXYGEN SENSOR WILL BE DAMAGED WHEN EXPOSED TO EXHAUST GAS IF NOT PROPERLY POWERED 10 Document 31 0008 LM2 Manual 1 0 doc The maximum temperature of the sensor at the bung the sensor hexagon should not exceed 500 C or 900 F If these temperatures are exceeded in your application you should either install a double length bung one inch or the Innovate Motorsports Heat Sink Bung extender HBX 1 The double length bung is also recommended for situations where airflow is restricted It is NOT a good idea to do a sensor warm up prior to starting the vehicle Depending on the climate and the sensor position in the exhaust c
27. nalog output 1 directly to this wire The Ground connection has low resistance to chassis ground less than 1 Ohm Measure while the engine is off d Vehicle has a 4 wire sensor Typically the 4 wires are heater power heater ground sensor ground and sensor element connection Proceed as for the 3 wire sensor 35 Document 31 0008 LM2 Manual 1 0 doc Appendix A Specifications Power Power requirements Serial Communication Serial Port Speed Packet Logging Speed Sample Resolution Software Supported OSs OBD II Specifications Number of Channels Supported protocols USB Specifications Protocol Version Supported OSs Temperature Max Operating Temperature 36 Single Channel 8 14 Volt 2 A max 1 A nominal Dual Channel 8 14 Volt 4 A max 2 A nominal 19 2 kbit sec 81 92 msec sample packet 10 bits 0 5V at 0 1 resolution Windows 98 ME 2000 XP and Vista 16 max ISO 157650 CAN J1850PWM J1850VPW ISO 9141 ISO 14230 KWP2000 2 0 Windows 98 ME 2000 XP and Vista 20 to 80 deg Celsius Document 31 0008 LM2 Manual 1 0 doc Appendix B Limited Warranty LIMITED WARRANTY Innovate stands behind the quality of its products Innovate makes the following warranty to purchasers of its products All new Innovate products carry a six month warranty from the date of purchase If proof of purchase cannot be provided warranty will be determined by date of manufacture When Warranty Void
28. ndividual value Read 2nd Value an Read 3rd Value Read last Value Read 1st Value Now let s look at how Low Priority Values fit into this Instead of being read once each time through the loop only one C Read 2nd Low Priority value is read each time through the loop So if you ae have three low priority values it will take three passes of the loop to read them all once Read last Value Read one Low Priority Value Low Priority Value List Document 31 0008 LM2 Manual 1 0 doc With our racetrack shaped diagram fresh in mind let s look at Low Priority inputs in practice In this example the vehicle can provide four LM 2 channels that update at full MTS rates Even four channels are still very usable For example here is RPM SPARKADV ignition timing FUEL1 OL Open Loop Status and VSS Vehicle Speed Sensor Ci Desktop tr4 log Session 2 E I l Ioj x File Edit Sessions Channels Tools View af 4 I Hh Ch Ce E Session length 5 min 37 56 sec 5 37 01 sec F 1080 RPM 47 6 degBTDC 0 000 OL 60 1 km h OL 01 02 03 04 05 06 07 08 09 1 C Lia c Ww D e c P c r D D r c Ti c pa c ui a e a x n na aet ie e un Cn ai n a 3 a T LL un FUEL1 OL But what would happen if we also added ECT IAT MAF and MAP f we left all our channels at normal priority some critical channels may not be fast e
29. nning this Setup program Click cancel to eut Setup and close any programs you have running Click Mest to continue with the Setup program Warming This program i protected by copyright law and ntemalional kesse Unauthorzed reproduction or distribution of this program or any portion of it may result in severe cl and cnminal penalties and vall be prosecuted bo the maium extent possible under law 3 Connect one end of the USB cable to the LM 2 and the other end to your computer 4 Power up the LM 2 Note The unit is not powered up by the USB connector 5 Windows will now recognize the device and prompt the New Hardware Wizard Click Next Found New Hardware Wizard Welcome to the Found New Hardware Wizard Windows will search for current and updated software by looking on your computer on the hardware installation CD or on the Windows Update Web site with your permission Read our privacy policy Can Windows connect to Windows Update to search for Yes now and every time connect a device No not this time Click Mext to continue 6 Select Install the Device Automatically and click Next 7 A progress screen will appear During this installation process the screen below will pop up Click Continue Anyway 12 Document 31 0008 LM2 Manual 1 0 doc Hardware Installation E A The software you are installing for this hardware Innovate LM 2 Air Fuel Meter
30. nough for our purposes 23 Document 31 0008 LM2 Manual 1 0 doc Co Desktop tr8 log Session 1 Oo x File Edit Sessions Channels Tools View Eur Ta A c E E Session length 2 min 41 87 sec i E 1 56 33 sec 710 RPM 23 5 degBTDC 0 000 OL 34 8 km h 59 1 degt 26 1 degt B gis 31 8 kPa 10 20 30 40 50 60 02 03 04 05 06 07 08 09 SPARKADY degBTDC D e T e rn ce ey ID Wi a e a x o na FUELI_OL COLI 0 1 But not all channels change quickly and we are more concerned with some channels than others For example let s say we are primarily concerned with RPM SPARKADV and FUEL1 OL We d like VSS IAT ECT MAF and MAP but we do not care if they update slowly So we can mark those channels as low priority um LM Programmer Version 3 18 O x Info Pratacal Channels Inputs Trouble Codes 2 Low Priority 15 Low Priority 16 Connected J1850 Pw GM DA Document 31 0008 LM2 Manual 1 0 doc Now when we log the data RPM SPARKADV and FUEL1_OL look like our original four channel log C Desktoptr amp b log Session 1 mi x File Edit Sessions Channels Tools View af FIG SI E e E Session length 4 min 29 27 sec e a d sec 1380 RPM 31 5 degBTDC 0 000 OL 31 8 km h 90 1 degl 23 1 degl 29 gifs 55 1 kPa ID 01 02 03 04 05 06 oF 08 09 1 se t SO 40 20 20 10 O 10 20 30 40 50 60 1 ra AIL ra I LT l T LT
31. nsor cable 1 Verify Sensor connector or Cable connector not is fully seated into unit fully seated Repair replace Sensor or cable Error 3 Pump cell circuit 1 Short in sensor cable 1 Repair sensor cable shorted 2 Short in sensor 2 Replace sensor 3 Sensor heater 3 Perform sensor heater calibration incorrect recalibration 4 Sensor overheating 4 Move your sensor bung 5 EGT 51700 F as far downstream as possible OR add a heatsink to isolate the sensor from the pipe Error 4 Pump cell circuit open 1 Damaged sensor 1 Verify sensor connector cable or sensor is fully seated into unit connector not fully Repair replace cable seated 2 Perform complete 2 Sensor heater heater calibration not just calibration incorrect free air calibration See section 4 shorted 2 Short in sensor 2 Replace sensor Error 6 Reference cell circuit Damaged sensor Verify sensor connector open p or sensor is fully seated into unit connector not fully 2 Replace sensor seated 2 Damaged Sensor Error 7 General System error Typically a software error Reboot LM 2 by cycling typically a software power Re flash unit if error necessary Error 8 Sensor Timing error 1 Sensor overheating a Perform sensor typically a damaged The Bosch LSU4 2 is prata recalibration b sensor a to operate at a Move your sensor bung sensor housing as far downstream as possible Right before the cat or 2 3 feet from the end of the
32. ocol Channels page can be edited The available values for logging on the connected ECU are listed in the drop list for each Input Some vehicles will support larger lists than others ammer Version 3 27 JD xi Trouble Codes Analog Out 1 Analog Out 2 Info Protocol Channels Inputs LP LP APM Engine APM SPAREADY Timing Advance v vss Vehicle Speed Sensor Mane Inactive Mane Inactree i None Inactive None Inactive AT None Inactive Mone Inactive If Hone Inactive 15 16 LP Low Priority read less often Connected 150 9141 Frogram 6 Hit the Program button to send the configuration A Also it cannot be stressed enough that different ECUs will have dramatically different response speeds Below are two extreme examples 18 Document 31 0008 LM2 Manual 1 0 doc 4 4 OBD II Channel Speed The first is a log trace of one channel RPM from a 2001 Lexus Co VOT 1lexus1 log Session 1 i ml x File Edit Sessions Channels Tools View JW a I E ue E e E Session length 24 25 sec LL man C C e T A E a i D 3 Notice that the data appears steppy and based on the timeline appears to be updating about 6 times per second Next we have a log trace of 16 channels RPM MAF MAP TP you name it from a 2006 Saturn 19 Document 31 0008 LM2 Manual 1 0 doc Co OT 1 sat16 math log Session 2 E ml x File Edit Sessions
33. of 22 39 They represent sensor 1 and sensor 2 respectively Other curves of course are easily programmable 3 3 4 Advanced output programming The Advanced button allows programming to set the analog out update speed and the voltage output during sensor Warm up and Error Condition The factory defaults of the analog outputs is to update the outputs 1 12 of a second The factory default voltage output is set for O volts for both the Warm up and Error Condition 15 Document 31 0008 LM2 Manual 1 0 doc Advanced Analog Out Settings Response Speed C Instant 17 12 sec C 1 G sec 1 3 sec Warmup output Output at Error Cond 0 00 Wolk ar 0 00 Volt or High Impedance High Impedance Factor defaults When setting the LM 2 to the slower response speed settings the measured mixture data will be averaged over the response time setting before being output 4 OBD II The LM 2 allows you to read up to 16 channels of OBD II On Board Diagnostic information directly from your vehicle s engine control unit ECU A log file can be recorded on the included SD card and played back on a personal computer using Innovate s LogWorks software included with the LM 2 or other 3rd party MTS compatible applications 4 1 Locate the OBD II Connector in your vehicle This is typically the most dangerous aspect of LM 2 installation A safety helmet is wholly optional but a flashlight can be extremely helpful The connec
34. of the screen is the status bar and will look something like this 4 STEM ER EY E rs UTA The left most portion is the current time which can be set via menu and is set 46 08 A LM a 5 Document 31 0008 LM2 Manual 1 0 doc During Recording an upper case R and a counter will display on the lower left TB T Mila Counting minutes and seconds of recording oimilarly during playback a upper case P and a counter will display Counting elapsed time during playback Note If Recording does not start see later section also look here the word Card will appear if no SD card is detected when Record is selected The word Full will appear if you have either filled the SD card or exhausted the available log names see section on recording Moving to the right the next two indications are O2 sensor status which can be one of the ET HW Heater Warm up Cal Calibrating O2 Reading O2 context lambda over 8 something L Reading Lambda or AFHR Ex Error Check Appendix E for error code meanings and trouble shooting tips Note If the LM 2 is a single channel model the second indication will be blank not an error code The next indicator R will appear when a RPM is selected for logging use see menus and b an RPM signal is detected Note when RPM is enabled but no RPM signal is detected this symbol will appear in lower case r A SEM 3 7 4 WMA The A
35. ondensation can form in the exhaust pipes This condensation could then be blown by the exhaust stream against the hot sensor when the car is started The resulting heat shock can permanently damage the sensor 2 3 Calibration Schedule Normally aspirated daily driver Calibrate before installation of new sensor Calibrate new sensor again after 3 month of use Thereafter calibrate once a year or every 20 000 miles whichever comes first Turbo Application daily driver tuned rich Calibrate before installation of new sensor Calibrate new sensor again after 3 month of use Thereafter calibrate twice a year or every 10 000 miles whichever comes first Race Application Calibrate before first installation of new sensor Calibrate once per race weekend For added sensor life we also recommend our optional double length bung part number 3764 Dyno use Calibrate a new sensor Calibrate every 2 3 days depending on usage 11 Document 31 0008 LM2 Manual 1 0 doc 3 Programming the LM 2 3 1 Installing software and Connecting the LM 2 to computer 1 Install the CD that came with your LM 2 in your personal computer 2 The installer will automatically start follow the prompts to install the software LogWorks 3 Installation Welcome welcome to the Log oiks3 Setup program This program wall install LogiwWorkz3 on yow computer It is slrongls recommended that vou ent all other Windows programs before ru
36. powered by the cigarette adapter 12 volts in order to properly heat the Oxygen sensor and measure Air Fuel If the unit is only to be used connected to the OBDII port it will properly function as a scan tool 2 2 Sensor Placement Using a bung is the preferred method for mounting the Of sensor for both catalytic and non catalytic cars On CATALYTIC CONVERTER equipped vehicles Install the oxygen sensor s bung upstream from the catalytic converter a bung and plug is included in the LM 2 kit The bung must be installed in the exhaust pipe at the side or on top NOT on the bottom of the exhaust pipe Any decent muffler or exhaust shop can do this for you The wide band oxygen sensor is then installed into the bung to take a reading Insert the plug into the bung when not in use The ideal position is between 10 00 and 2 00 position 9 Document 31 0008 LM2 Manual 1 0 doc On NON CATALYTIC converter vehicles You have the option with non catalytic cars to also use an exhaust clamp as described below Use of a bung is the preferred method for mounting the 0 sensor for both catalytic and non catalytic cars On TURBO CHARGED vehicles Install the bung downstream from the turbo but before the catalytic converter The high exhaust pressure before the turbo interferes with the lambda measurement and the high exhaust temperatures encountered there can damage the sensor Alternatively you can also use the optional exhaust clamp part nu
37. rate Sensors Free Air Calibrate ALL O2 sensors connected will be calibrated e RPM Enable Disable RPM and Configure RPM e Analog Enable Disable Analog Inputs e OBD II Configure Number of Channels 0 16 Channel Use Get Clear DTC codes and Selections do not filter based on current connection If a certain channel is not available the data will read O e Set Date Time Set the current date time Important Note Entering the Configuration Menus will stop recording and suspend MTS packet output 7 Document 31 0008 LM2 Manual 1 0 doc 1 4 Recording When recording is first activated a file is created The naming convention is mmddyyXX d32 Basically the month day and year that the file is created The XX is to accommodate multiple files on the same day counting begins at 00 Once a file exists sessions are appended to it for each additional recording The exceptions to this are 1 The MTS channel count type has changed 2 The user requests a new log file by pressing and holding Record or holding the record button on an external XD 16 The first instance will occur if devices are added or removed the MTS serial chain or if channels are enabled disabled on the LM 2 When a new file is created it will be given the day s date and a unique counter 07010800 d32 07010801 d32 Etc 2 Air Fuel Ratio Setup Innovate Motorsports Direct Digital wideband measurement principal allows you to calibrate
38. s is for instrument monitoring and is not connected to the J1962 connector in the standard Innovate Cable Also the unit can be powered via this connector for basic operation However the O2 sensor circuits are not powered when OBD II is used as the power source The O2 sensor s require the normal power connection 3 Analog Looking at the connector with the clip up pin 1 Is the lower left USE eo a So Amalogin Red OOO O 4 J Analog ing Orange 6 AnalogOut2 DarkGreen 7 2 RPM Be 8 J Analog ind Purple 9 J Jq Amdogln2 Grey 38 Document 31 0008 LM2 Manual 1 0 doc Analog In 4 Analog Out 1 Analog Out 2 Brown White Black White Note All these inputs and outputs are differential That is the negative inputs must be connected to ground 4 Serial Out Pin Use 1 RX 2 TX 3 GND 4 GND 5 Serial In Pin Use 1 TX 2 RX 3 GND 4 MTS Sense 6 Inductive Clamp Pin Use 1 Coll 2 Coil 7 USB Pin Use 1 NC 2 D 3 D 4 NC 5 GND The unit CANNOT be powered from USB It must be powered via OBD II or the main power connector for use 8 Power Pin Use o GND 2 4 VBAT 39 Document 31 0008 LM2 Manual 1 0 doc Appendix D Supported PIDs 40 Name Description RPM Engine RPM TP Throttle Position abs LOAD PCT Engine Load calc SPARKADV Timing Advanc
39. s the Physical Communication Link Instead the various car manufacturers were each allowed to keep using their own existing protocols and physical links We can see this compromise on the OBD II connector itself Pin Assignments 1 9 2 J1850 10 J1850 3 11 4 Chassis Ground 12 5 Signal Ground 13 6 CAN 42284 High 14 CAN 42284 Low 7 ISO 9141 K line 15 ISO 9141 L line 8 16 Battery Power Note Pins marked with are sometimes used for make model specific purposes Looking closely we can see that there are really three different electrical pairs each representing a different type of physical communication link J1850 pins 2 amp 10 CAN pins 6 amp 14 and ISO pins 7 amp 15 On top of these three physical communication links are six different communication protocols e The J1850 pair uses either J1850pwm Ford or J1850vpw GM e he CAN pair uses either standard ISO 15765 or extended ISO 15765 e The ISO pair use either ISO 9141 or ISO 14230 sometimes referred to as KWP2000 SO in order to get OBD II information from any OBD II compatible vehicle an interface needs to speak six different languages over three different types of electrical links otarting in MY2008 this will drop to one electrical link CAN and two protocol variations 27 Document 31 0008 LM2 Manual 1 0 doc ISO 15765 standard or extended but that still leaves about 12 years of compromise ve
40. safe place but not necessarily in the exhaust and connect the heater wires to it to keep the EFI computer happy Be careful where you mount the stock sensor as heated sensors will get hot To connect the LM 2 to the EFI computer first determine what kind of narrow band sensor is used then follow the instructions below you will need a digital multimeter to determine correct OEM sensor wires 34 Document 31 0008 LM2 Manual 1 0 doc a Vehicle has a 1 wire sensor Wire analog output 1 directly to the wire b Vehicle has a 2 wire sensor While the engine is off determine which of the 2 wires has a low resistance between the wire and the sensor bogy This is the heater power for the sensor Wire analog output 1 directly to the other wire Leave the heater power wire unconnected but make sure it cannot ground itself c Vehicle has a 3 wire sensor Typically the 3 wires are heater power Ground and sensor element connection Generally they have 1 black wire and 2 white wires Connect the black wire from the EFI computer to analog output 1 of the meter Leave the other wires unconnected but make sure they cannot contact any metal parts or see above If the wiring colors are different then heater power can simply be determined by measuring the voltage on the wires when the engine is running The wire showing 12V or more is the heater power The sensor element connection voltage fluctuates around 0 45V when the car is warmed up Wire a
41. tailpipe are good locations c Add a temperature of lt 900 degrees measured at the bung for maximum accuracy and control 42 Document 31 0008 LM2_Manual_1 0 doc When this operating heatsink to isolate the temperature range is sensor from the pipe exceeded the sensor The HBX 1 is an available can no longer be accessory accurately controlled 2 Replace sensor 2 Sensor is damaged 3 Correct Tune and 3 Overly Rich condition recalibrate the sensor Error 9 oupply Voltage too Supply voltage too low for Check your 12V connection low sensor regulation for corrosion 43 Document 31 0008 LM2 Manual 1 0 doc 7 Revision History 1 0 6 23 2008 Initial Release 1 1 7 10 08 Added RPM setup and LM Programmer configuration screens 44 Document 31 0008 LM2 Manual 1 0 doc
42. the sensor to compensate for sensor wear This procedure takes no more than a couple seconds and it will insure the most accurate readings throughout the oxygen sensors life 2 1 Sensor Calibration The calibration procedure requires that the oxygen sensor be in free air not in the exhaust 1 Connect the oxygen sensor to the provided sensor cable and then to the appropriate port on the LM 2 Note The dual channel LM 2 model allows you to connect both oxygen sensors to the unit at the same time to do the calibration simultaneously 8 Document 31 0008 LM2 Manual 1 0 doc 2 Connect the LM 2 to the cigarette power plug with the provided cigarette power adapter Dl Sensor 1 3 The sensor s will start warming up The LM 2 will display WXX where XX is the percentage of Wis temperature reached Notice the status bar displaying a W 4 Next is the calibration procedure Press and hold the Mode button until the Configuration Menu appears Select Calibrate Sensors and press the Enter button Display AFR TES Calibrate Sensors Enable RPH Enable Analog Inputs DEDI Sat Timer Dats 5 The display will momentarily display Cal and then it will switch to reading a percentage of oxygen If the oxygen content now differs from 20 996 by more than 0 6 repeat the calibration Oc Sensor 1 Oc Sensor 1 Cal 20 9 Lambda Lambda Cal E 2 5 35 dla 6 Ihe LM 2 is calibrated and ready for use The LM 2 must be
43. tor is required to be within 3 of the driver s seat in the vehicle and accessible without tools Generally it is somewhere just behind the bottom edge of the dashboard immediately in front of the driver but it may be in a relatively obscure place like hidden behind an ashtray If you are unable to locate the connector by inspection your best bet would be to either ask a mechanic familiar with the make and model vehicle or locate an online hobbyist enthusiast group devoted to your vehicle Here is a sample OBD II connector Please note that the orientation of the connector varies from vehicle to vehicle For example in this example the wide part of the connector is down In other installations this wide part of the connector will be up In still Document 31 0008 LM2 Manual 1 0 doc other installations the entire connector may be facing the floorboard On many newer vehicles the connector is concealed behind a small door or removable plastic cover plate Also the connector itself may be covered with a small removable rubber cap 4 2 Selecting Channels on the LM 2 1 Press and hold the Mode button to go into the Configuration Menu Screen Select OBD II and press the Enter button 2 Select Configure OBD II 3 You will now be given the option to select a particular OBD II protocol or you can leave it on Automatic which 0 Automatic will scan all available protocol until it connects Press Enter 4 S
44. xtender HBX 1 This problem is easier to diagnose as you will only see the error code come up at wide open throttle Sometimes it s possible to encounter Error 08 when the exhaust gas suddenly gets too rich 6 7 Connecting the LM 2 to simulate a narrow band oxygen sensor It is possible to install the wide band sensor in place of the OEM oxygen sensor In this case the meter s analog output signal will replace the OEM oxygen sensor s signal to the fuel injection computer EFI equipped cars typically incorporate a narrow band oxygen sensor These sensors are typically 1 2 3 or 4 wire sensors The analog output connector of the LM 2 can simulate the operation of a narrow band sensor while the wide band oxygen sensor is installed in place of the OEM narrow band sensor Factory equipped Analog output 1 of the LM 2 is programmed to simulate a narrow band sensor Some vehicles are equipped with oxygen sensors that do not produce an output voltage but change their resistance depending on exhaust gas content These sensors cannot be simulated They are used in less than 1 of all vehicles Refer to your vehicles specifications if you think that your vehicle may be in this category The same is true for vehicles already factory equipped with a wide band oxygen sensor These cannot be simulated either some EFI computers will create a fault when the heater power wires of the oxygen sensor are disconnected In this case mount the old oxygen sensor in a
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