1997 Pontiac Sunfire Repair Question

Topics covered: Fuel pressure, Gas, Floor.
Mileage: 150,000 miles.

Asked on February 18, 2012

Car stalled an now will only start if gas pedal is to floor runs ruff for a few secs than it stalls

Car stalled out towed home would not start unless i heald gas pedal to floor an once started would only continue runing if gas pedel is still held to floor but it stalls after about 30 secs i got good spark good fuel pressure 42psi good compression 150 each cylinder i have change crankshaft sensor tps an no change ran obo2 got a p0121b checked plugs they r black an wet cleaned them tryed to run no luck i removed fuel pump fuse an sprayed starter fluid an it started up ran great put fuse back in an back to barely starting an stalling smelling gas so guess car is geting flooded is it the injectors bad or fuel pressure reg bad how can i know forsure already put 2000 in this car in the last few months an sure cant aford much more but sure need this car back on road

Asked by chaz1983

Answer

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Replied on February 18, 2012

Check the fuel pressure again, could be injectors are leaking or the fuel presure regulator

Answered by rasmataz
68 questions asked

Replied on February 18, 2012

could be temp sensor could be module prob not fuel press reg you would have high pressure i would suspect module.

Answered by billymac (expert)
2,255 answers provided

Replied on February 18, 2012

Your FP should 41-47 psi

Answered by rasmataz
68 questions asked

Replied on February 18, 2012

used noid light to chk injector pulse that was good not sure how to know if injectors are leaking or how to check fuel regulator other than was told to take vacum hose off top of fuel reg an if its wet its bad if dry its good well its dry not sure of anyother way to check