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P0138 Diagnostic Trouble Code Discussion for June 2008

Heated Oxygen Sensor (Bank 1 Sensor 2) Circuit High Voltage

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Trouble Ticket Help Requests for DTC P0138
Help Request Posted
1997 Jeep Grand Cherokee Laredo 5.2L MIL Lamp on VIN: JKU58JH698
P0138: Heated Oxygen Sensor (Bank 1 Sensor 2) Circuit High Voltage. intermitent mill lamp, goes on then off evey two to three weeks, when i scaned the ecu the mill was off , however this code was in the memory p138 high voltage / closed loop fault, i have this cheap code reader, with no data, so icould not see what it looked l...
June 05, 2008
1996 Cadillac DeVille 4.6L MIL Lamp on VIN: 1G6KD52Y9T
P0138: Heated Oxygen Sensor (Bank 1 Sensor 2) Circuit High Input. ... and ses light on, originally. 6 codes stored po171, po174, po131, po138, po151,p1139. fixed poor run with plugs, wires, and fuel filter and cleared codes. (hoped repair would eliminate some codes) vehicle returned with same...
June 25, 2008