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P0135 Diagnostic Trouble Code Discussion for May 2012

Heated Oxygen Sensor (Bank 1 Sensor 1) Heater Performance

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Trouble Ticket Help Requests for DTC P0135
Help Request Posted
2004 Dodge Grand Caravan SE 3.3L MIL Lamp on VIN: 1D4GP24R34
P0135: Heated Oxygen Sensor (Bank 1 Sensor 1) Heater Performance. Please read the related repair history below first. Tested the heater circuit again, and the resistance was still at the spec of 2.8 ohms. A TSB search came up with a note about a mid-year change for the B1S1 sensor from 2.8 to 7-10 ohms and a reflash of the ...
May 15, 2012
2001 BMW X5 3.0i 3.0L Poor Idle Quality VIN: WBAFA53581
P0135: O2 Sensor Heater Circuit Bank 1 Sensor 1. Disconnected MAF runs well no stalling, swapped MAF no change, still lean with random misfire, checked oil seporator and found damaged hoses, replaced seporator, all 4 hoses, intake gaskets and suction jet pump for brakes (it was broken) reassembled engine aft...
May 19, 2012