What is wrong

Tiny
JASON
  • MEMBER
  • 1997 PONTIAC FIREBIRD
  • V8
  • 2WD
  • AUTOMATIC
  • 90,000 MILES
1997 firebird 5.7 new complete tune up keeps showingp1074 fuel lean bank 2 and 0300 misfire
Thursday, April 21st, 2011 AT 12:38 AM

1 Reply

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Lean fuel condition could be caused by one of the following below:

1. Vacuum leaks
2. EGR and PCV valve.
3. Low fuel pressure.
4. Dirty fuel injectors.
5. Mass Air Flow Sensor.
6. Oxygen Sensor.
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Thursday, April 21st, 2011 AT 12:41 AM

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