Bringing TBI and Multi Port Fuel Injection to a New Level.     EFI Conversions and Tuning! Seattle to Portland! E-mail Tuning Consultant!
Results 1 to 3 of 3

Thread: 16168625 ecm pinout help

  1. #1
    Carb and Points!
    Join Date
    Apr 2018

    16168625 ecm pinout help

    I have a 1988 gmc 1500 5.7l tbi with a 16168625 ecm. I pulled the motor for a rebuild and was in the process of replacing wire loom and cleaning up the harness (no mods just clean up ) and I cant for the life of me find the knock sensor plug, ok so I go looking for the ESC module so I can trace the wire back but there seems to be no ESC module or even a plug for it, so now I am on the search for the correct pinout for my ecm so I can confirm if the ESC is intergrated into the distributor or the ECM. the engine had a knock sensor installed in the factory location when I pulled it just no wiring. I'm putting everything back to original factory specs. Any help would be great
    Attached Images Attached Images

  2. #2
    Super Moderator dave w's Avatar
    Join Date
    Feb 2011
    This thread has a 16168625 wiring diagram:

    You are 100% correct, the 16168625 does not have an ESC module. The 16168625 has the Knock Sensor wired directly to the computer.

    dave w

  3. #3
    Carb and Points!
    Join Date
    Apr 2018
    Thank you very much for the diagram and the response

Similar Threads

  1. 16144288 TBI ECM upgrade to 16168625 TBI PCM
    By 57 Handyman in forum GM EFI Systems
    Replies: 30
    Last Post: 01-10-2018, 05:21 PM
  2. Updating a 16139501 to a 16168625
    By dbecks in forum GM EFI Systems
    Replies: 2
    Last Post: 04-27-2017, 09:34 PM
  3. 16168625 to 16197427
    By Stokes1114 in forum GM EFI Systems
    Replies: 5
    Last Post: 04-22-2017, 10:51 AM
  4. Issue with ALDLDroid and 16168625
    By xSTUDDSx in forum GM EFI Systems
    Replies: 2
    Last Post: 01-18-2016, 10:15 AM
  5. 16168625 PCM Information $E6
    By EagleMark in forum GM ECM - Bins - TunerPro Definition Files - Wiring Diagrams - Tuner Info!
    Replies: 6
    Last Post: 03-12-2012, 06:51 PM

Tags for this Thread


Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts