I have a 1988 Camaro rs that had a 2.8 v6. I bought a 92 rusty Camaro with a blown trans for parts and its 350. can someone please give me advice on switching wiring harnesses. is every wire under the hood considered the ecm wiring? or are there separate harnesses under the hood? also I want to delete my ac and cruise control (looking for a really clean engine bay). if anyone could give me some tips on taking out everything i don't need from those two things. and also any pointers on painting engine bay? any response or guidance to a specific thread would help a lot. i searched for about 2 hours and couldn't find anything specific to my problems.

 

There are two harnesses in the engine bay. The ECM is one and the Chassis Harness is the other. The chassis harness will have the ignition, starter, temp gauge, and other dash and power leads in it.

Remove the whole ECM harness from the 92 including the relay and the junction blocks.

Here's a link to some schematics that can be helpful. Also it might be helpful to get a GM service manual for an 88 Camaro.

http://www.austinthirdgen.org/index.php?pid=19

 

do both wiring harnesses got through the firewall by the ecm? I saw that there are wires coming down from the dash that join to the junction block on the firewall right there. also will both two wiring harnesses be together in a loum or are they seperate? and btw I decided to keep ac