2002 Lexus GS300 has acceleration problem

2002 LEXUS GS 300
155,000 MILES
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TMUSTANG66
  • MEMBER
  • 1 POST
seems to straving for fuel.does not accelerate well from a complete stop.It has two pending codes. po171 and po174
Feb 16, 2012 at 11:47 PM
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RASMATAZ
  • ✓ASE Certified Mechanic
  • 75,992 POSTS
  • ASE Certified Mechanic
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.
Feb 16, 2012 at 11:49 PM
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