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Low fuel pressure lean fuel code 171


Mdonahue
06-09-2004, 08:54 AM
99 GTP miles 130000

runs rough most of time, code occurs just about everytime it is driven.

have replaced fuel pump, fuel filter, vaccum harness, fuel pressure regulator.

I have been thinking about getting an adjustable pressure regulator and just pump it up.


fuel pressure is at about 40 psi should be 55.


Possiblities -

other component on the vaccum harness leaking.

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