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P0151 Diagnostic Trouble Code Discussion for August 2007

Air Fuel Sensor (Bank 2 Sensor 1) Circuit Low Input (Lean Shift)


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Trouble Ticket Help Requests for DTC P0151
Help Request Posted
1999 GMC K1500 Sierra SLE 5.7L Excessive Emissions, Poor Idle Quality, Hesitation, Misfire, Poor Fuel Economy, MIL Lamp on VIN: 1GTEK19R1X
P0151: Heated Oxygen Sensor (Bank 2 Sensor 1) Circuit Low Voltage. Please Help!!! I have worked on this vehicle 3 times now for the same complaint. When the vehicle first came in it had been at three other shops.The customer told me that the vehicle had been tuned up, had the intake gasket replaced, a new fuel filter, an inje...
August 01, 2007