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P0151 Diagnostic Trouble Code Discussion for October 2011

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
2003 Chevrolet Silverado 1500 4.3L Hesitation, Misfire, Poor Fuel Economy, MIL Lamp on VIN: 1GCEK14X33
P0151: Heated Oxygen Sensor (Bank 2 Sensor 1) Circuit Low Voltage. This truck has me stumped!!! O2 Sensors installed but vehicle misfires after 5-10 miles and FT%/ST% above threshholds after driving. O2's flatline and system dumping fuel due to lean condition. Inspected spider assy with fuel pump running and no detectable lea...
October 07, 2011
2006 Mitsubishi Endeavor LS 3.8L MIL Lamp on VIN: 4A4MN21S06
P0151: Heated Oxygen Sensor (Bank 2 Sensor 1) Circuit Low Voltage. Costumer took truck out mudding and got stuck and it appears some water got sucked in thru intake and broke a valve and piston so we installed a used engine upon start up truck ran very bad and set o2 codes immediatly we replaced 3 of the 4 o2 sensors (because...
October 19, 2011