2001 Saturn L200 CODE po171

2001 SATURN L200

128,000 MILES • 4 CYL • FWD • AUTOMATIC

KNKAISER

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i am having a problem with my saturn l200.i got the code po171.i have already replaced the oxygen censor,and the fuel filter,but i am having the same problem.it drives fine when i am in town but when i go up a steep hill it dies on me

Aug 16, 2008 at 9:49 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.

RASMATAZ

AUTOMOTIVE REPAIR CONTRIBUTOR
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P0171

A lean fuel condition can be caused by:

* Low fuel pressure due to a weak pump or leaky fuel pressure regulator. (use a fuel pressure gauge to check fuel pressure at idle)

* Dirty fuel injectors. (try cleaning the injectors)

* Vacuum leaks at the intake manifold, vacuum hose connections or throttle body. (Use a vacuum gauge to check for low intake vacuum)

* Leaky EGR valve. (Check operation of EGR valve)

* Leaky PCV Valve or hose. (Check valve and hose connections)

* Dirty or defective Mass Airflow Sensor (MAF). (Try cleaning the MAF sensor wires or filament with aerosol electronics cleaner. Do NOT use anything else to clean the sensor, and do not touch the sensor wires

Aug 17, 2008 at 7:21 AM