Replaced fuse links and verified power was being received but the vehicle only has non switched power (headlights, interior lights). Trying to also sort out the previous owners wiring nightmare. Couldn't find the plug to this connector, wires come out of the wiring harness under the P/S dash by the ECU/Dual Connector. Car was an LT 2.8L Auto but is now a 5.7L TPI Auto car. Any help would be useful since the Haynes manual apparently isn't.

 

Does that come from the ecm harness ?
85 1226870 ecm ?

 

It might I'm uncertain where the double black connector side of the harness comes from since it's fairly tight up there but those three wires come out of that section.

 

85 tpi ?

 

No sir, 87.

 

https://www.thirdgen.org/forums/tpi/...-question.html

 

That is the injector power supply connector. Should plug into a black end. I believe it is c221. Attached is a picture of mine.




Black connector comes off the body harness gray connector off the ECM / engine harness.

 

I have the electric manual for 87 let me see if I can upload an image for you.

 

I built my '91 from the guts of my '87 including wiring and all that. if you have any particular questions feel free to reach out to me I probably can answer them.

I rewired the entire body of my 91 to the specs of my '87. Somebody think that's a travesty but I wasn't ready to go speed density.

 

Sorry it is actually connector c221 my bad.

 

 

Thanks for your help guys it's really appreciated. Now to figure out why my started kept going after I removed the key. It never ends 😅