Mechanics

GS300 HAS ACCELERATION PROBLEM

2002 Lexus GS 300 • 155,000 miles

Seems to straving for fuel. Does not accelerate well from a complete stop. It has two pending codes. Po171 and po174
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Tmustang66
February 16, 2012.



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.

Rasmataz
Feb 16, 2012.