Hey guys, whats the best way to aquire a layout of the cobalt's wiring harness... specifically, the ecu harness.
1. go to a stealership and buy a manual from them or,
2. other sources

Have a new AFC to wire into the car and need the schematics for it...

 

Try a search.

This thread is a sticky in the tuning section:
https://www.cobaltss.net/forums/tuning-131/ecotec-engine-management-summary-w-pinouts-38412/

 

Dude...ur awesome!!! Thats what i was lookin 4! Thanx

 

I'm here to serve.

 

Ok... Thats...great. JK bro. Now i have to find all the wires i need so i can get my AFC wired in...
Hey, is there an RPM or tach lead on either of those or did they name it sumthin funky?

 

Can someone help out im trying to install a a/f gauge and digital tach on mine also any comments or how to's?

 

A/F gauge works on it's own, has nothing to do with the ECM harness.

Tachs recieve their signal in a variety of ways. What kind do you have?