1998 Pontiac Sunfire Smells rich and stalls

Tiny
UBSIX
  • MEMBER
  • 1998 PONTIAC SUNFIRE
Engine Performance problem
1998 Pontiac Sunfire 4 cyl Two Wheel Drive

The smell of fuel is strong, in and out of the car as soon as it starts. Runs weak and stalls frequently. Map sensor was replaced a couple months ago. I put my hand to the exhaust and had black spots on it.
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Sunday, August 22nd, 2010 AT 3:30 AM

3 Replies

Tiny
RASMATAZ
  • MEMBER
Probable causes of an engine running rich are as follows:

1. Excessive fuel pressure can be cause by restricted fuel return line or defective fuel pressure regulator.
2. Defective Oxygen Sensors.
3. Leaking injectors and fuel pressure regulator.
4. Coolant temperature sensor out of calibration.
5. Restricted air intake system.
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Sunday, August 22nd, 2010 AT 3:40 AM
Tiny
CONSTANCE324
  • MEMBER
Would any of these issues cause the car's a/c to run intermittently?
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Friday, July 8th, 2011 AT 6:05 PM
Tiny
RASMATAZ
  • MEMBER
No, it will not-
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Saturday, July 9th, 2011 AT 9:49 PM

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