generallee440

i have a 91 gt 5.0 . i just did a rebuild on my motor .30 over heads, cams ,intake ,24 pound injecters ,mass air flow for 24 pound in injecters. have the timing set at 12 with the spout connecter out. it has 35 pound of fuel pressure . i did a leak down test on the fuel rail , it was fine. it has spark at the pulgs, and even done a commpresion test it was fine. the car will start but it will only run with your foot on the pedal. if it falls below 1500 rpm it will die. it will restart till it gets hot, then it will crank but not start. it has a new distributor module , coolant temp sensor, tps . i was thinking maby a bad computer . is there any way to check it or any other idels that you may have wood help thanks

dreamer1uk

I would do a base idle rest and then go from there.

Is your MAF setup for your mods?

How do the plugs look?