car only runs slowly or it will cut out

1988 PONTIAC FIERO
133,000 MILES
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BOB CARR
  • MEMBER
  • 1 POST
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
Nov 14, 2011 at 10:54 PM
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JACOBANDNICKOLAS
  • ✓ASE Certified Mechanic
  • 110,194 POSTS
  • ASE Certified Mechanic
Check fuel pump pressure to make sure it is within spec. Also, check to make sure there are no vacuum leaks.
Nov 14, 2011 at 11:15 PM
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DARTHKIMMI
  • MEMBER
  • 1 POST
mine did something similar, replaced everything in the ignition system --ended up being the distributer... good luck
Dec 7, 2011 at 6:57 PM
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