what is wrong

1997 PONTIAC FIREBIRD
90,000 MILES • V8 • 2WD • AUTOMATIC
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JASON
  • MEMBER
  • 1 POST
1997 firebird 5.7 new complete tune up keeps showingp1074 fuel lean bank 2 and 0300 misfire
Apr 21, 2011 at 12:38 AM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.
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RASMATAZ
  • AUTOMOTIVE REPAIR CONTRIBUTOR
  • 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.
Apr 21, 2011 at 12:41 AM
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