2002 Buick LeSabre Custom 3.8L MIL Lamp on
Car came in with severe lack of power and codes p0171 lean, and p0131 O2 sensor voltage low. Found severe dirt on MAF wire and very dirty air filter. Changed air and fuel filters and cleaned MAF wire. Car now has plenty of power, so I clear codes and let it go...
FIX posted 9/14/2007
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Message Closed w/FIX
Vehicle Data2002 Buick LeSabre Custom
Trouble Codes
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Message Closed w/FIX
Vehicle Data
2002 Buick LeSabre Custom
VIN | 1G4HP54KX2 |
Engine | 3.8 L / 6 cyl / GAS |
Trans | 4-speed Automatic (Electronic) |
Delivery | FI / multi port injection |
Emissions | OBD-II Compliant |
Symptoms | MIL Lamp On |
Occurs | Always |
Trouble Codes
P0131 | Heated Oxygen Sensor (Bank 1 Sensor 1) Circuit Low Voltage |
P0171 | Fuel System Too Lean (Bank 1) |