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P0155 Diagnostic Trouble Code Discussion for May 2011

Heated Oxygen Sensor (Bank 2 Sensor 1) Heater Performance


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Trouble Ticket Help Requests for DTC P0155
Help Request Posted
2001 GMC Safari SLE 4.3L Poor Idle Quality, Misfire, MIL Lamp on VIN: 1GTDM19W61
P0155: Heated Oxygen Sensor (Bank 2 Sensor 1) Heater Circuit Malfunction. Vehicle idles rough all the time, hot or cold. Runs perfect off idle with no misfires. Towes a trailer no problem with plenty of power. Cyl number 5 and 6 racking up misfires constantly at idle. Smoke tested intake with no external leaks found.
May 05, 2011
2001 GMC Safari SLE 4.3L Poor Idle Quality, Misfire, MIL Lamp on VIN: 1GTDM19W61
P0155: Heated Oxygen Sensor (Bank 2 Sensor 1) Heater Circuit Malfunction. Vehicle idles rough all the time, hot or cold. Runs perfect off idle with no misfires. Towes a trailer no problem with plenty of power. Cyl number 5 and 6 racking up misfires constantly at idle. Smoke tested intake with no external leaks found.
May 10, 2011
2001 GMC Safari SLE 4.3L Poor Idle Quality, Misfire, MIL Lamp on VIN: 1GTDM19W61
P0155: Heated Oxygen Sensor (Bank 2 Sensor 1) Heater Circuit Malfunction. Vehicle idles rough all the time, hot or cold. Runs perfect off idle with no misfires. Towes a trailer no problem with plenty of power. Cyl number 5 and 6 racking up misfires constantly at idle. Smoke tested intake with no external leaks found.
May 05, 2011
2001 GMC Safari SLE 4.3L Poor Idle Quality, Misfire, MIL Lamp on VIN: 1GTDM19W61
P0155: Heated Oxygen Sensor (Bank 2 Sensor 1) Heater Circuit Malfunction. Vehicle idles rough all the time, hot or cold. Runs perfect off idle with no misfires. Towes a trailer no problem with plenty of power. Cyl number 5 and 6 racking up misfires constantly at idle. Smoke tested intake with no external leaks found.
May 10, 2011