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P0136 Diagnostic Trouble Code Discussion for December 2007

Heated Oxygen Sensor (Bank 1 Sensor 2) Circuit Malfunction


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Trouble Ticket Help Requests for DTC P0136
Help Request Posted
1999 Ford Ranger XL 3.0L Excessive Emissions, Poor Idle Quality, Misfire, Poor Fuel Economy, MIL Lamp on VIN: 1FTYR11V6X
P0136: O2 heater. This Ranger is running very rich at idle and cruise Huffing black smoke rich.Fuel pressure is stuck @55 psi.I have replaced the flex fuel sensor with a salvage yard unit but i think it is bad too.Information is bad at best on how the flex fuel system works.I r...
December 27, 2007