Ecm connector

[limited_obs]

Hello everyone, I got a 1990 c1500 with a 350 engine and automatic transmission. One of my ecm connector broke and all the pins fell apart. I got a new pigtail from the junkyard but not all the wires match so my question is if anyone have the pin designations for the ecm connector. I’ve attached pics of the wiring

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[east302]

The GM manual should have that. PDF versions can be downloaded here, looks like we have 1990…

88-98 Service Manuals

Over the years I have collected a bunch of GM service literature. Links to PDF Scans of service and STG manuals and a links to the Parts manuals. You'll need the FREE Adobe Acrobat reader to open these files. Get it directly from Adobe here {http://get.adobe.com/reader/} If you're not...

www.gmt400.com

 

[GoToGuy]

There is a link to download the Factory service manuals free in here, do a forum search. You need it.

 

[tayto]

i'd like to hear the story on how the ECM connector broke

 

[GoToGuy]

Hmm. Guess he didn't need them.