was wondering if anybody here might have any ideas as to what my problem might be. installed the FAST ECU on my car yesterday with a fast track harness to splice into the stock PCM harness. after the install the car wont start, and the c-com dashboard is showing 0 rpm and 0 injector pulsewidth when cranking. there is spark at the coils however which confuses me even more. any ideas? i looked over it again and all my wiring appears to be correct according to the fast track harness instructions

 

Chevyguy, I would recommend to double check your Fast Track adapter harness. Check to see if any traces are burnt and open on the adapter boards themselves. What is your part # of the ECU??
30-1x6010 or 30-1x3010??
Kevin

 

thanks for the suggestion, ill look at that. i dont think the problem has to do with the FAST anymore though. i tried going back to the stock PCM and the car still wont run. just made a ton of changes at once on the car so ive got a bit of digging to do to figure out what i messed up. so far all the wiring i have checked has been ok