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P0138 Diagnostic Trouble Code Discussion for November 2009

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

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Trouble Ticket Help Requests for DTC P0138
Help Request Posted
1999 Dodge Ram 1500 Laramie 5.2L Poor Idle Quality, Hesitation, Surge, Cuts out, Stall, MIL Lamp on VIN: 3B7HC13Z8X
P0138: 02 sensor 2 downstream shorted to voltage. ... sensor 1 shorted to voltage and p0138 02 sensor 2 shorted to volage. installed new o21 and code came back so I began testing the circuit. Scan tool reads 4.7 volts for the o21 at 188F @ 2500 rpm. When the vehicle enters cl...
November 01, 2009
2006 Chrysler Pacifica Touring 3.5L MIL Lamp on VIN: 2A4GM68406
P0138: Heated Oxygen Sensor (Bank 1 Sensor 2) Voltage High. hi amigos. im going crazy with this truck, i hope some one knwos about this problem that i have, im working on this 2006 chrysler pacifica touring with the 3.5 eng. we allready replaced, o2 sensors [2] and the e.c.m. and we check the wiring. and still have the...
November 11, 2009
2002 Audi A6 Quattro 2.7L MIL Lamp on VIN: WAULD54B32
P0138: O2 Bank 12 Voltage High Voltage. Vehicle has been to 3 shops for repair. Last shop was Audi dealer, who informed customer to replace pedal position sensor. He pulled car and replaced it himself. Of course codes returned. Scanned car and found 1.06 volts on both downstream O2 sensors, with no ...
November 19, 2009