charlie1011

I have a 91 camaro with a 305 tbi, I've been having tons of problems recently with the car running rough and dying on me at low rpms. Here are the parts I changed with no improvement on the car.

EGR Valve
IAC
MAP Sensor
Coolant Temperature sensor
Sparks/Wires
Pickup coil/module
Rotor/Distributor cap.
Injectors
ECM - Probably going to return cause it made no difference.

Tested the fuel pressure and got the recommend 9-13 psi, getting spark and fuel. I'm out of ideas, what do you guys recommend?

bigal55

iTrader: (1)

Check for vacuum leaks!
Check your TPS also.

antares57

iTrader: (8)

Ohm your injectors, should run about 1.3. Check the injector spray pattern, should conical and even. Rebuild your throttle body, FPR may be ruptured. Check your timing. Good luck.

charlie1011

I checked for vacuum leaks, I may replace the hoses just to be sure.

I replaced the TPS as well. As for the the ohms on the injectors, I checked those and they were fine. I rebuilt the throttle body and put new gaskets and a new FPR. Timing was just recently done as well.

Any other ideas? Hahah

Johnny Gun

Check for vacuum leaks again. While the engine is running, spray a small amount of starter fluid around all the hoses and intake gaskets and see if your rpms rise. Just don't spray any on your exhaust.

antares57

iTrader: (8)

Did you disconnect the EST wire to set your initial timing? Also might want to consider having your ICM checked, didn't see it as one on the items replaced.