i have a 1988 trans am with the digital dash. the car was originally a 305 tbi but that is long gone. i removed the computer and wiring for it. now none of the dash works. can someone post or send me a schematic for the computer connector. or can someone point me in right direction to get power to the dash. please and thank you for any and all help!

 

You screwed up somewhere.
The computer and it's wiring have nothing to do with the dash or gauges which run off their own wires from the sensors
on the engine / fuel tank .

https://www.thirdgen.org/forums/carb...tbi-going.html

 

Check your fuses yet ??



About 95% of the wires you will need when converting to a Carb are on the drivers side of the engine bay. Here is the C100 plug for your 88,..... ( firewall drivers side )





I've got an 88 GTA engine harness and it's the largest harness I've ever pulled out of a ThirdGen. I can understand the need to try and make it smaller after a conversion - sadly; rather than tucking un-needed wiring away most people hack the harnesses apart when swapping.



As long as the C100 wiring is correct your dash should light up. If you check & your getting power properly through C100 ( and have good grounds ) then I'd start to think the dash cluster was the problem.