CAR STALLED AN NOW WILL ONLY START IF GAS PEDAL IS TO FLOOR RUNS RUFF FOR A FEW SECS THAN IT STALLS

  • Tiny
  • chaz1983
  • 1997 Pontiac Sunfire
  • 150,000 miles

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

Saturday, February 18th, 2012 AT 3:32 AM

10 Answers

  • Tiny
  • rasmataz
  • Member

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

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Saturday, February 18th, 2012 AT 3:36 AM
  • Tiny
  • billymac
  • Expert
  • 2,240 posts

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

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Saturday, February 18th, 2012 AT 3:38 AM
  • Tiny
  • rasmataz
  • Member

Your FP should 41-47 psi

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Saturday, February 18th, 2012 AT 3:41 AM
  • Tiny
  • chaz1983
  • Member

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

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Saturday, February 18th, 2012 AT 3:45 AM
  • Tiny
  • chaz1983
  • Member

Fuel pressure is 42 psi

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Saturday, February 18th, 2012 AT 3:46 AM
  • Tiny
  • chaz1983
  • Member

Billymac was you thinking about the igntion module if so I replaced that befor testing mine at advance an mine passed so end up with a extra good module an coil for back up one day will check cool temp

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Saturday, February 18th, 2012 AT 3:50 AM
  • Tiny
  • chaz1983
  • Member

Can my computer be replaced in my car I was told to check injectors see if they r spraying a mist or squirting gas if it's not my injectors than I'm being told it's my computer an in some year guess the computer can't be changed

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Saturday, February 18th, 2012 AT 8:42 PM
  • Tiny
  • chaz1983
  • Member

PlEase help me

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Tuesday, February 28th, 2012 AT 5:17 AM
  • Tiny
  • chaz1983
  • Member

Please help

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Saturday, March 3rd, 2012 AT 8:15 AM
  • Tiny
  • Wrenchtech
  • Expert
  • 19,541 posts

This person has multiple questions open on the same problem.

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Saturday, March 3rd, 2012 AT 10:58 AM

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