Fuel problem

Tiny
HCANTU
  • MEMBER
  • 1998 PONTIAC SUNFIRE
  • 4 CYL
  • 2WD
  • AUTOMATIC
My 1998 Pontiac Sunfire is using excess fuel and cutting out. It also has white smoke coming from the exhaust. What could be the cause?
Tuesday, March 22nd, 2011 AT 12:59 AM

1 Reply

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
1. Excessive fuel pressure can be cause by restricted fuel return line

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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Tuesday, March 22nd, 2011 AT 1:01 AM

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