Question about 2001 Buick LeSabre
REPLACED BOTH FRONT OXYGEN SENSORS, MAP SENSOR, MASS AIR FLOW SENSOR AND FUEL PUMP. CANNOT FIND ANY VACCUUM LEAKS ON THE VEHICLE ST LEAN RUNS ABOUT 8-13 IT SAYS ANYTHING UNDER 15 IS ACCEPTABLE BUT CODE STILL COMES ON
Intake gasket is leaking look on the right side where the trans bolt to the engine on top of the trans maybe leak
Posted on Jan 18, 2013
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Posted on Jan 02, 2017
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P0174 - Fuel Injection System Too Lean Bank 2 Symptoms - Engine Light ON (or Service Engine Soon Warning Light)
- Excessive Fuel Consumption Possible causes - Intake air leaks
- Front Heated oxygen sensor may be faulty
- Injectors may be faulty
- Exhaust gas leaks
- Incorrect fuel pressure
- Lack of fuel
- Mass air flow sensor may be faulty
- Incorrect PCV hose connection Possible solution Dirty air filter of faulty air flow sensor are common causes of the problem. Bottom line possible defective Mass airflow sensor and or O2 sensor in cylinder bank number two.
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