I am trying to finish up an LQ4 swap into a old vette, and thought some of you truck guys might know where to find a wiring diagram for the engine harness. The harness and PCM are out of an '02 Sierra HD.

I am still using the all the truck accessories/intake/injectors/ect, but I think there is some wiring/connectors in the harness that I don't need to use, and a good wiring diagram would be really helpful to figure out which parts of the harness I need and which parts I can remove. Not to mention figuring out what goes where.

I've looked around, but if I can't find a diagram on the internet, I'll just buy one. Any help is much appreciated! Thanks.

 

In case anyone else may need wiring info in the future, lt1swap.com was the best resource I found.