Camaroguyrs91

I have a 1991 camaro rs with the 305 and i have replaced several parts thinking that they are the problems, such as TPS, ECM, distributor, wires, plugs, cap, rotor, rebuilt the tbi, and probably even more just cant think off the top of my head. The car wont spray the fuel in order to idle, i can keep the car running by pumping the throttle but i cant just lay my foot into it and have it increase rpm, it will just bog out and die but it will spray the fuel. I need this car on the road soon so hopefully somebody will have some good answers.

ex-x-fire

Sounds like low fuel pressure, auto zone has a tbi fuel pressure tester that you can rent/buy. Spec is 9-13psi.

Camaroguyrs91

I put a new fuel pump in it and the pressure is about 13

onebad92

what was the initial problem that made you replace all those parts? its acting the exact same way after all the new parts and rebuilding the tbi? no change?

ImBrandon

did you check your old plugs to see if you blew a head gasket. Also check and clean the iac, check your map sensor.