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Car only runs slowly or it will cut out

Tiny
BOB CARR
  • MEMBER
  • 1988 PONTIAC FIERO
  • 133,000 MILES
My 88 Pontiac Fiero will cut off if the accellerator is pushed to the max. The car will run ok if driven slowly, But will backfire at intake and cut out if accellerated too fast. The car failed inspection for HC ppm 391. (No check engine lights.) O2 sensor
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Monday, November 14th, 2011 AT 10:54 PM

2 Replies

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,755 POSTS
Check fuel pump pressure to make sure it is within spec. Also, check to make sure there are no vacuum leaks.
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Monday, November 14th, 2011 AT 11:15 PM
Tiny
DARTHKIMMI
  • MEMBER
  • 1 POST
Mine did something similar, replaced everything in the ignition system --ended up being the distributer. Good luck
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Wednesday, December 7th, 2011 AT 6:57 PM

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