im looking for a wiring harness for my 1990 firebird the tbi was taken out and replaced with a carb the the owner before me hacked up the main wiring harness trying to get rid of the extra wires for the tbi and ruined everything (headlights, blinkers tack, ignition,.........) any thing will help. I have already a stand alone engine management system so everything else please and thank you. or if you could head me in the right direction for what I need

 

do you need the engine harness or the interior harness?

 

every thing that runs thru the engine bay that's not for the engine like headlights tach and power supply to the main fuse block and the two relays by the brake booster and that should be all

 

Main power to fusebox and Tach signal is on the engine harness and headlights are on the headlight harness.


On a 90,..... your asking for all teh wiring under the hood.