P0155 Diagnostic Trouble Code Discussion for December 2013
Heated Oxygen Sensor (Bank 2 Sensor 1) Heater Performance
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| Help Request | Posted | |
| 2002 Jeep Grand Cherokee Laredo 4.0L MIL Lamp on VIN: 1J4GW48S82 P0155: Heated Oxygen Sensor (Bank 2 Sensor 1) Heater Circuit Malfunction. Called IDFix line, not a lot of help, this is very intermittent, code sets when below 20 deg, cold soak start, O2's have to drop below 3.0V in 75 sec. O2's are below 3V in 10 sec, swinging in 18 sec, downstreams swinging in 30 sec. Don't know what else to chec... |
December 10, 2013 |
