Gm ecm pinout

CorvetteForum - Chevrolet Corvette Forum Discussion. C6 Corvette, 2005 - 2013. C6 Tech/Performance. LS3 / E67 ECM pinout needed. C6 Tech/Performance LS2, LS3, LS7, LS9 Corvette Technical Info, Internal Engine, External Engine, Tech Topics, Basic Tech, Maintenance, How to Remove & Replace.

Home › Current database with ECU connection diagrams. actual update: 2024/04/17. ECU pinout. AcDelco E35 GM. AcDelco E37 Opel. AcDelco E38 GM. AcDelco E39 irom MPC5566 bam GM. AcDelco E39 irom MPC5566 bench GM. AcDelco E39A irom MPC5566 bam GM.Here is a E38 complete pinout. Information is gained by pieces from GM SI, tracing and probing disassembled ECM PCB and reverse engineering of several OSes. …Does anybody out there have a Pinout diagram for the red and blue connecters that plug into the ECM? 1995 K1500 5.7 TBI ... 1995 PCM Pin Out Chart (GM 4.3L, 5.0L, 5 ...GM V8 Tuning; GM V8 Tuning - Engine, Gas (Gen 5) 2020 Silverado 5.3L/6.2L L84/L87 E90 ECM Pinout; Results 1 to 4 of 4 Thread: 2020 Silverado 5.3L/6.2L L84/L87 E90 ECM Pinout. Thread Tools. Show Printable Version; 02-27-2023 #1. Joseph M. View Profile View Forum Posts Private MessagePCM Connector: Red (C2) 1996-1997. To navigate to a different PCM connector, use the links below: C1 Blue. C2 Red. C3 Clear -or Grey-. C4 Black. C2 (Red) PCM 32 Pin Connector. Pin. Wire Color.Truck Year. 1987. Truck Model. GMC V2500 Camper Special. Engine Size. TBI 5.7 350. Hey Folks, I have had several GM 4x4s and now picked up a one owner 87 V2500. Its in great shape but I really have no experience with the TBI (SBC 5.7 TBI).The electronic control module (ECM) of your vehicle plays a crucial role in ensuring its optimal performance. It acts as the brain of the vehicle, monitoring and controlling variou...

It is carefully disassembled to remove the TPI ECM-related wiring and then inspected for damage. Rather than splice in repair segment(s) for a damaged circuit, such as a cut ring terminal at the starter, I place a brand-new length of 10-gauge purple wire in the wire harness, which is terminated at the starter and at the bulkhead connector for ...Rpmextreme Gm E38 A C Request Module Rpm Extreme. Gm Diy Wiring Club Ssw Standalone Wire Harness Ls Wirng Ls1 Ls2 Ls3 Ls7 Ls9 Vortec Conversion. Bmw Car Radio Stereo Audio Wiring Diagram Autoradio Connector Wire Installation Schematic Schema Esquema De Conexiones Anschlusskammern Konr. Building A Benchtop Pcm …GM Gen 3 Bricked PCM Recovery P01 P04 P59 LS Fuel System Information LS Torque Specs ... P01 P59 PCM Connector Pinouts 99-06 Vats Security and CASE Relearns XDF's Files For P01 P04 P05 P10 P59 Stock and Tuned File Repository Folder: Bench Harness Pinouts. Back. P01 P04 P06 P08 P59 E54 Bench Harness ...slimwolf. 341 posts · Joined 2008. #3 · Feb 23, 2009. I think he might mean the pin code for the ECM but not sure. I have a download on the other computer. Brad. 2003 K&N high airflow, edge, 285/75R16. 1968 Thunder-Bird.Aug 21, 2014 ... This video details how to remove the pins from a GM E38 PCM harness. This is a Ly6 harness. After looking around and finding no info on how ...This computer may be interchangeable with the following service numbers / part numbers with the proper programming: 12582605, 12589463, 12602802, 89017734, 28042802, 89017750, 89017734 This computer fits many different vehicles including: AVALANCHE 1500 05-06 Electronic Control Module; (LH front under battery) ESCAL.

2010 L99 LS3 Camaro ECM Pinouts X1 X2. WWW.LT1SWAP.COM. [ PCM PROGRAMMING ] [ WIRE HARNESS INFO ] [ Active Fuel Management DELETE ] Visit my Facebook page for a lot of New Pictures & Harness Guides YouTube channel for How To videos - E-Mail: [email protected]. See below 2010 Camaro L99 or LS3 ECM …If you have recently purchased a General Motors vehicle and it is having a problem, you may be wondering if your truck has a warranty that will cover repairs. There are several di...Nov 17, 2011 ... are they in repair manuals ?5 - 12 Section 5 - Diagnosis ECM 56 WAY OUTPUT CONNECTOR. ECM PIN CKT(WIRE) CKT (WIRE) CIRCUIT DESCRIPTION NUMBER NUMBER COLOR J1-1 CRANK REQUEST * J1-2 N/A J1-3 759 TAN/WHT PERFECT PASS ENABLE J1-4 941 YEL SLAVE ENGINE SELECT J1-5 N/A J1-6 N/A J1-7 EMERGENCY STOP * J1-8 N/A J1-9 LOW REFERENCE - FUEL LEVEL SENSOR * J1-10 N/A J1-11 TROLL MODE ...A car’s electronic control module is the computer responsible for providing fuel to the engine and controlling the quality of the car’s emissions. The ECM uses a microprocessor and...

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Things you'll need for the swap: 1) 12200411 PCM. 2) both 80 pin 411 PCM connectors. 3) 2 red retainers and 2 blue retainers. 4) a few extra PCM pins (maybe 5-6 extra depending on what truck you're working on), if you get your 411 pcm from a junkyard, see if you can get the PCM, connectors/retainers, and a foot or so of the harness wiring. Bench Harness Pinouts has moved here: https://www.customecm.com/tune-file-repo-and-info-here/bench-harness-pinouts Aug 15, 2023 · 21-23 E90 Global B Support Now Available! 2021-2023 E90 Global B Applications Now Supported. In addition to the E99 ECM, GM?s new generation of the E90 ECM is also exclusively supported by our. VCM Suite software with full custom tuning and diagnostics capabilities thanks to our GM E90 ECM. upgrade service. Feb 13, 2015 · Because only the PCM has been changed throughout the years, the 2001-2002 Gen III PCM (GM# 12200411) may be used with any 1996-newer V-8 and V-6 Vortec engine. Vortec V-6 and Gen I Small-Block Vortec V-8 Ignition Coil Output: The only Gen III PCM that General Motors used with the Vortec V-6 and Gen I small-block Vortec V-8 engines is the 2001 ...

Oct 4, 2020 · Truck Year. 1987. Truck Model. GMC V2500 Camper Special. Engine Size. TBI 5.7 350. Hey Folks, I have had several GM 4x4s and now picked up a one owner 87 V2500. Its in great shape but I really have no experience with the TBI (SBC 5.7 TBI). Apr 17, 2024 · all solutions for this control unit type you can find in our file service. actual update: 2024/04/17. ECU pinout. AcDelco E35 GM. AcDelco E37 Opel. AcDelco E38 GM. AcDelco E39 irom MPC5566 bam GM. AcDelco E39 irom MPC5566 bench GM. AcDelco E39A irom MPC5566 bam GM. This project will detail the steps, parts, hints, techniques for upgrading a 1985 GM TPI Engine Control Module (ECM) to a later model, having several advantages over the older one. The ECM that came in my 1985 Z28 Camaro with the TPI motor (VIN "F") is a series 1226870 (870) control unit (car computer). This model was used in the …Gm service dept for the win! Stopped at my local gm dealer to see what they could come up with. I had the vin # from the donor vehicle. After a couple minutes they were able to print the entire pinout for the ecm. These are the six wires: 22-L.Blu/Blk-Coolant temp sensor #2 Low reference 26-Yel-Brake apply sensor signal 39-L.Grn-Coolant temp ...Your vehicle deserves only genuine OEM GM parts and accessories. To ensure reliability, purchase GM part # 12110115 Connector Asm,Ecm Wiring Harness *Blue.It is sometimes referred to as GM Door Harness Connector, GM Door Lock Switch Connector, GM Speaker Connector. Our GM parts and accessories are expedited directly from authorized GM … LT BLU/BLK. IAC Coil A Low. 79. LT BLU/WHT. IAC Coil A High. 80. LT GRN. HO2S Heater Low Reference. Full pcm pinouts for the 1999-2002 GM Trucks for your LS Swap. GM Gen 3 Bricked PCM Recovery P01 P04 P59 LS Fuel System Information LS Torque Specs ... P01 P59 PCM Connector Pinouts 99-06 Vats Security and CASE Relearns XDF's Files For P01 P04 P05 P10 P59 Stock and Tuned File Repository Folder: Bench Harness Pinouts. Back. P01 P04 P06 P08 P59 E54 Bench Harness ...Does anybody out there have a Pinout diagram for the red and blue connecters that plug into the ECM? 1995 K1500 5.7 TBI ... 1995 PCM Pin Out Chart (GM 4.3L, 5.0L, 5 ... This part fits specific Buick Century, Park Avenue, Regal models. It fits Cadillac Deville, Eldorado, Seville. It also fits Chevrolet Blazer, Camaro, Tahoe. This also fits GMC C2500, Suburban, Yukon. Affordable, reliable and built to last, GM part # 12110115 Connector Asm,Ecm Wiring Harness *Blue stands out as the smart option. 1999-02 LS1 PCM pinouts (Camaro, Firebird) Corvette similar PCM connector (BLUE) Pin Wire Color Circuit No. Function 1 BLK 451 PCM Ground 2 LT GRN 1867 12 Volt Reference- CKP Pin "C" 3 PNK/BLK 1746 Fuel Injector 3 Control 4 LT GRN/BLK 1745 Fuel Injector 2 Control 5 -7 -- -- Not Used

Here's a list of the pins but they are also on the wiring diagrams above. A1- grn/wht- this wire is used to energize the fuel pump relay. A2- not used. A3- not used. A4- gry- to EGR relay. (optional) This is a ground from the ECM to control the EGR relay. A5- brn/wht- SES (service eng soon) light.

Gauges, Electronics and Wiring. ECM pins. Jump to Latest Follow ... got to the point of installing the pins I ordered from GM. Looking at the plugs, they're rectangular pins? ... This isn't my first time pinning an ECM harness, but I'm lost getting the right pins. The dealer cannot locate the right p/n off of my VIN number either.21-23 E90 Global B Support Now Available! 2021-2023 E90 Global B Applications Now Supported. In addition to the E99 ECM, GM?s new generation of the E90 ECM is also exclusively supported by our. VCM Suite software with full custom tuning and diagnostics capabilities thanks to our GM E90 ECM. upgrade service.02-27-2023 #1. Joseph M. Potential Tuner. Join Date. Oct 2022. Posts. 1. 2020 Silverado 5.3L/6.2L L84/L87 E90 ECM Pinout. I am working on a pinout for the …GM Gen 3 Bricked PCM Recovery P01 P04 P59 LS Fuel System Information LS Torque Specs Tach wiring for 99+ Vortec/LS ... P01 P59 PCM Connector Pinouts 99-06Here you will find wiring harness information for the Vortec 8100 Engine. This particular post is for the 2001 model C/K 2500 or 3500 Chevy Pickup. ... A/C Low Pressure Switch, and PCM: Figure 15: Throttle Actuator Control (TAC) Module, ETC Fuse, Throttle Position Sensor: Figure 16: Cruise Control ON/OFF Switch, STOP LPS Fuse, and Accelerator ...This part fits specific Buick Century, Park Avenue, Regal models. It fits Cadillac Deville, Eldorado, Seville. It also fits Chevrolet Blazer, Camaro, Tahoe. This also fits GMC C2500, Suburban, Yukon. Affordable, reliable and built to last, GM part # 12110115 Connector Asm,Ecm Wiring Harness *Blue stands out as the smart option.CorvetteForum - Chevrolet Corvette Forum Discussion. C6 Corvette, 2005 - 2013. C6 Tech/Performance. LS3 / E67 ECM pinout needed. C6 Tech/Performance LS2, LS3, LS7, LS9 Corvette Technical Info, Internal Engine, External Engine, Tech Topics, Basic Tech, Maintenance, How to Remove & Replace.

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Part #: 100-01060. This Engine Control Module (ECM) programming harness is to be used with any of our BenchForce™ PowerBlock switch assemblies to reprogram E78 ECMs outside of the vehicle. ECU harnesses connect to the OBD2 switch assembly through a short pass-through harness. This E78 ECM programming harness requires a Pass …Below are the PCM Connector pinouts specifically for a 2004 Pickup with BLUE and GREEN connectors. These pinouts should be similar to 2003-2007 PCMs with the BLUE & GREEN connectors. 2006+ harnesses may have fewer wires, these are not needed anyway for stand alone swap. BLOCKS HIGHLIGHTED LIKE THIS, ARE WIRES THAT CAN BE …9. Locate the ECM X1 connector. 10. Pull out the red locking tab. While pushing down on the area indicated by the yellow area pull the connector lever up and over to the other end of the connector. This will disengage the connector from the ECM module. 11. CAREFULLY pull the X1 connector out and up to gain access to the connector. 12.2014 vs 2016+ L83 ECM/Engine compatibility. Hi All, I?ve recently purchased an L83/6L80e out of a Silverado truck. It has the harness but no PCM or gas pedal. Without knowing the donor VIN/year, I?ve bought a 2014-2015 E92 ECM and unlocked it with HPT. I was able to start the engine with starting fluid at the beggining …Aug 2010. Posts. 1,934. Originally Posted by MN C5. Can someone point me to where I could obtain E92 Pinout Information. Just purchased a new 2015 6.2 GMC and want to hard wire a Ethanol sensor to the ECM. Thanks. With a Truck, it should already be there - J1 (Blue) pin 38 (white wire).The other row is prefixed with the letter B and its 16 terminals are labeled B-1 thru' B-16 (see the illustration above). IMPORTANT: This pin out chart applies only to the 1995 pickups with a 4.3L V-6, 5.0L V-8, or a 5.7L V-8 with an automatic transmission (4L60-E or 4L80-E). For other PCM pin-out charts, take a look at the following: Pin 34 - ECM can be programmed to accept single wire park/neutral signal on this pin, if no transmission mounted range switch is present Pin 56 - ECM should programmed to remove FLEX Fuel Function or FLEX Fuel Sensors must be installed Does anyone have the pinout of an E38 ECM. I'm trying to feed in a narrow band output out of my wideband controler. I understand there may also be some sort of a sensor contol module or interface for the 4 O2s, but I havn't found it yet. The car is a 2009 Pontiac G8 GXP aka Holen Commodore SS, LS3 motor. 09-18-2009 #2. DSteck. ….

Articl Id: 1135. The Powertrain Control Module (PCM) on the 2005, 2006 4.8L, 5.3L, and 6.0L V8 equipped Chevrolet Express and GMC Savana vans has two connectors. Each connector can be identified as: C1 Blue (80 Pin Connector). C2 Green (80 Pin Connector). In this and following pages, you'll find the terminal pinouts for both PCM connectors.Socrates is a Web-based program for General Motors’ employees. Employees use the program to stay informed about changes and updates within the company. Employees must register to u...Jan 31, 2022Apr 22, 2014 ... GM used the GBCM as a way to redue alt use ie output to increase MPG. It used the GBCM which told the PCM to reduce use. The pin 75 is field ...GM Gen III LS PCM/ECM: Wire Harness Selection Guide includes instructional photos, checklists, and step-by-step instructions on upgrading to the GM …LT1 was installed with a stock 1995 PCM and wiring harness I modified for the swap. The TPI is controlled by Megasquirt II using a MSD Pro Billet Distributor. ... Included on this page is the VATS page, showing how to bypass GM's anti-theft system used in many early 90's vehicles. My '67 Chevy Page has a little info about my pickup. I've done ...Do you know what the engine control module actually controls? Check out this article to learn about ECMs in cars and find out what they do. Advertisement Of all the things that can...The My GM Rewards Card offers high earning potential, but it likely only makes sense if you want to redeem your points toward GM-related purchases. We may receive compensation from...Sep 20, 2023 ... Here is the GM Delco E78 ECU bench pinout. Foxflash Read and Write GM Delco E78 ECM. Read and write ok. Gm ecm pinout, PCM Connector: Blue (C1) 1998-99. In this article, you'll find the pin out descriptions of the 4 PCM connectors for the 1998-1999 GM 4.3L, 5.0L or 5.7L Engines. NOTE: For other PCM pin-out charts, take a look at the following: 1993 PCM Pin Out Chart (GM 4.3L, 5.0L, 5.7L GAS w/ 4L60-E)., In 1999, the GM# 16238212 PCM was replaced with the GM# 09354896 PCM. These PCMs are not interchangeable and the wire harness was pinned differently. Vehicles using these PCMs included the Corvette, Camaro, Firebird, and full-size trucks. The full-size trucks were available with the 4.8L, 5.3L, and 6.0L engines., Connector 1: Engine Control Module (ECM) C1. Connector 2: Engine Control Module (ECM) C2. Connector 3: Engine Control Module (ECM) C3. Engine Control Module (ECM) C1. Connector Part Information. OEM: 34576-3103. Service: 88988373. Description: 56-Way F (BU) Terminal Part Information., Most modules will draw under half an amp of current at 12v with very few exceptions (like E86 Duramax ECMs and T43 TCMs). Most tuning tools draw close to 0.1 amps of current. If you're flashing a CAN TCM, BCM, etc you generally either need a ECM on the bench with it or need to add CAN termination. You can do this with a 120 ohm resistor between ... , PCM Connector: Blue (C1) 1996-1997. The 1996-97 PCM (Powertrain Control Module = Fuel Injection Computer) on your 4.3L, 5.0L or 5.7L Engine has a total of 4 connectors. NOTE: For other PCM pin-out charts, take a look at the following: 1993 PCM Pin Out Chart (GM 4.3L, 5.0L, 5.7L GAS w/ 4L60-E)., In this episode of electrical connectors repair I show you how to remove the pins from the Engine ECM connectors which are very complicated comparing to the ..., PCM Reprogramming Services I will reprogram PCM, ECM, TCMs for engine swap applications. This includes removal of Anti-Theft or VATS, changes to fan on and off temps, injector part number, segment swaps for 4L60e to 4L80e conversions. Vehicles supported include 1993-97 LT1 and all 1996-2013 Trucks, Camaro, Firebird, Corvette., Here are the pinouts for the 2007 Silverado E38 ECM & T42 TCM Attached Files. Engine Control Module X1.pdf (145.5 KB, 2006 views) Engine ..., It allowed GM to get CAN on the GMT360 for the engine+transmission while leaving the body comms on VPW. GM used the same case and connector style for the LLY Duramax/P12 PCM/E40 ECM. I'd speculate that using a more "common" PCM that the GMT355/Colbalt SS/others used for the I4/I5s made more sense than continuing with a 1-engine PCM from a ..., Testing for a bad electronic control module (ECM), sometimes called an electronic control unit, requires the use of computer diagnostic equipment. However, there are clues drivers ..., Re: 12200411 PCM complete pinout. by Chas » Thu Sep 21, 2017 10:11 pm. I actually spent a lot of time comparing differences in wiring of the 0411 PCM for different cars/trucks. I'd like to add to this worksheet you have (for example, Pin 58 in the Red Connector 2 is for the Engine Oil Pressure Sensor Signal for only the Corvettes)., Set default mode to limp mode, car wont get anywhere in a hurry. lol. Quick Navigation GM V8 Tuning - Engine, Gas (Gen 4) Top. Here is a E38 complete pinout. Information is gained by pieces from GM SI, tracing and probing disassembled ECM PCB and reverse engineering of several OSes. 129235., The pinouts at the ECM will be the most consistent. The wires that power coils, o2 sensors, will need found, I can tell you all the wires you NEED, and you'll just have to find them with a multi-meter. Grab the L83 Harness …, LT BLU/BLK. IAC Coil A Low. 79. LT BLU/WHT. IAC Coil A High. 80. LT GRN. HO2S Heater Low Reference. Full pcm pinouts for the 1999-2002 GM Trucks for your LS Swap. , In 1999, the GM# 16238212 PCM was replaced with the GM# 09354896 PCM. These PCMs are not interchangeable and the wire harness was pinned differently. Vehicles using these PCMs included the Corvette, Camaro, Firebird, and full-size trucks. The full-size trucks were available with the 4.8L, 5.3L, and 6.0L engines., Jul 5, 2020 ... HOW TO DISCONNECT ECM ECM PCM WIRING HARNESS ON FORD FOCUS MK3. ENGINE COMPUTER ... How to Disconnect Electrical Connectors GM/Chevy, Dodge/ ..., Does anybody out there have a Pinout diagram for the red and blue connecters that plug into the ECM? 1995 K1500 5.7 TBI ... 1995 PCM Pin Out Chart (GM 4.3L, 5.0L, 5 ..., Here you will find wiring harness information for the Vortec 8100 Engine. This particular post is for the 2001 model C/K 2500 or 3500 Chevy Pickup. ... A/C Low Pressure Switch, and PCM: Figure 15: Throttle Actuator Control (TAC) Module, ETC Fuse, Throttle Position Sensor: Figure 16: Cruise Control ON/OFF Switch, STOP LPS Fuse, and Accelerator ..., Dec 8, 2019 ... GM ECM Programming Through SPS Fails, Project Country Club Creates A New Brick ... How to De-Pin ECM Connectors | Engine ECM Connector Pin Removal ..., The other row is prefixed with the letter B and its 16 terminals are labeled B-1 thru' B-16 (see the illustration above). IMPORTANT: This pin out chart applies only to the 1995 pickups with a 4.3L V-6, 5.0L V-8, or a 5.7L V-8 with an automatic transmission (4L60-E or 4L80-E). For other PCM pin-out charts, take a look at the following:, BenchForce™ PowerBlock is the central hub for powering up an ECU on the bench. PowerBlock is a circuit board solution that simplifies a vehicle's wiring into one simple CNC machined billet aluminum enclosure. Through the use of add-on harnesses, PowerBlock can handle just about any bench programming - especially OBD-II and J1939 applications., Aug 21, 2014 ... This video details how to remove the pins from a GM E38 PCM harness. This is a Ly6 harness. After looking around and finding no info on how ..., • New LLY 6.6L and LG4 7.8L engine information is added for diesel engines sold after 1/01/2004. (See LLY and LG4 ECM Connectors and Location Drawings.) The new engines require new Engine Control Modules. The LLY ECM changes from a 2-way (on the LB7 ECM) to a 3-way connector, and the new LG4 ECM from a 5-way to a 2-way connector. …, 7,816. Install a little program called Lightscreen, it lets you assign a key combo to capture the active window and save it to any directory you specify (it can do more than that with different keys, but for this that's all you'd need). Just go through the wiring diagrams and connector pinouts and take pictures of every page, then you have them ..., So here is a condensed copy of the LS1 P01 and P59 PCM pinout for 99-06 AUSTRALIAN delivered vehicles for your convenience. We understand the DIY'ers at home sometimes want to have a go at building their own swap or standalone harness and we have absolutely no issue with that, as long as it is done with safety in mind. Safety …, Most modules will draw under half an amp of current at 12v with very few exceptions (like E86 Duramax ECMs and T43 TCMs). Most tuning tools draw close to 0.1 amps of current. If you're flashing a CAN TCM, BCM, etc you generally either need a ECM on the bench with it or need to add CAN termination. You can do this with a 120 ohm resistor between ..., 14 13 12 11 10 9 8 7 6 5 4 3 2 1. ECM 56 WAY OUTPUT CONNECTOR. ECM PIN NUMBER. CKT(WIRE) NUMBER. CKT (WIRE) CIRCUIT DESCRIPTION COLOR. J1-1., Set default mode to limp mode, car wont get anywhere in a hurry. lol. Quick Navigation GM V8 Tuning - Engine, Gas (Gen 4) Top. Here is a E38 complete pinout. Information is gained by pieces from GM SI, tracing and probing disassembled ECM PCB and reverse engineering of several OSes. 129235., 5 - 12 Section 5 - Diagnosis ECM 56 WAY OUTPUT CONNECTOR. ECM PIN CKT(WIRE) CKT (WIRE) CIRCUIT DESCRIPTION NUMBER NUMBER COLOR J1-1 CRANK REQUEST * J1-2 N/A J1-3 759 TAN/WHT PERFECT PASS ENABLE J1-4 941 YEL SLAVE ENGINE SELECT J1-5 N/A J1-6 N/A J1-7 EMERGENCY STOP * J1-8 N/A J1-9 LOW …, Gauges, Electronics and Wiring. ECM pins. Jump to Latest Follow ... got to the point of installing the pins I ordered from GM. Looking at the plugs, they're rectangular pins? ... This isn't my first time pinning an ECM harness, but I'm lost getting the right pins. The dealer cannot locate the right p/n off of my VIN number either., Full pcm pinouts for the 1999-2002 GM Trucks for your LS Swap., Aug 21, 2014 ... This video details how to remove the pins from a GM E38 PCM harness. This is a Ly6 harness. After looking around and finding no info on how ..., E38 ECM Connector Pinouts. Visit my page for a lot of New Pictures & Harness Guides channel for How To videos - E-Mail: Below are the ECM Connectors for 2008 vortec 5.3L harness. Should be similar for 4.8L 6.2L applications. BLOCKS HIGHLIGHTED LIKE THIS, ARE WIRES THAT ARE NEEDED, AND GO TO EXTERNAL CONNECTION FOR STAND ALONE I have also ...