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P0138 Diagnostic Trouble Code Discussion for August 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 Wrangler Sport 4.0L MIL Lamp on VIN: 1J4FY1955V
P0138: Heated Oxygen Sensor (Bank 1 Sensor 2) Circuit High Voltage. new customer.. came in for mil on. found o2 code. upon start up and for the first 45 - 60 seconds the o2 reads almost 5v then drops steadily to normal voltage. .48. appears that i may be getting a leakage of 5v signal mixed in this circuit. but the question is...
August 25, 2008
1997 Jeep Wrangler Sport 4.0L MIL Lamp on VIN: 1J4FY1955V
P0138: Heated Oxygen Sensor (Bank 1 Sensor 2) Circuit High Voltage. new customer.. came in for mil on. found o2 code. upon start up and for the first 45 - 60 seconds the o2 reads almost 5v then drops steadily to normal voltage. .48. appears that i may be getting a leakage of 5v signal mixed in this circuit. but the question is...
August 25, 2008