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P0051 Diagnostic Trouble Code Discussion for February 2009

Air Fuel Sensor (Bank 2 Sensor 1) Heater Control Circuit Low Voltage

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Trouble Ticket Help Requests for DTC P0051
Help Request Posted
2001 Dodge Dakota SLT 5.9L Excessive Emissions, Poor Idle Quality, Stall, Misfire, Poor Fuel Economy, MIL Lamp on VIN: 1B7GL2AZ41
P0051: Heated Oxygen Sensor (Bank 2 Sensor 1) Heater Control Circuit Low Voltage. good morning everyone, this truck came in barely running. soon discovered the pre-cat on left bank had restricted the exhaust so it was replaced with no change. check o2 activity with our modis, it was running rich and o2 activity was slow to none. replaced bo...
February 06, 2009