Ive got t a a 91 z28 that had a running 305 but it knocked. I just put in a 350 and the motor cranked over like 3 days ago, but I didnt have all the sensors plugged in, or the distributor. I got it all hooked up, but now, nothing happens when I turn the key. The head lights work, pwr windows etc work, but the "check engine soon" light doesnt come on nor does the fuel pump come on. I checked the computer and there is power there. I also tried putting in a different computer box and it did the same thing. Any thoughts on where to start?
thanks

 

Did you go from a tbi to a tpi, and did you change out the computer chip?

The Trickster!!!!!!!!!!!!