I have an '86 IROCZ with a 305 CC QJet and T-5, I'm wondering if i have to have the computer changed so i can use it for a manual trans?? The motor is out of a 88 iroc. Its a 305 Tpi. I have everything i need but i'm wondering if i need to have the computer reprogrammed since its currently programmed for an auto. I'm new to swapping motors as well so if anyone can give me any advice that will help me out please feel free to put in your 2 cents.

thanks

 

The engine control programming isn't affected by the type of transmission. The only signal the auto ECM would send is the torque converter clutch lock-up, and since all it does is ground a circuit that doesn't exist with a T5, no problems would result. It also wouldn't get the "4th gear" signal from the tranny, but all that does is say it's okay to lock up the TCC.

 

Thanks for your input on that. Is there any tips you can give me on swapping the engines?? any pointers??? i've never swapped an engine before.

 

ACTUALLY, the Fuel, Ignition timing, and IAC programming between transmissions is VERY different. The automatic transmission places a different load on the engine than a standard does at different times.

 

So i will have to get it tuned??