P0131, Front oxygen (A/F) sensor circuit range/performance problem (low input) P0132, Front oxygen (A/F) sensor circuit range/performance problem (high input) P0133, Front Oxygen Sensor Circuit Slow ...

P0155 – O2 Sensor Heater Circuit Malfunction Bank 2 Sensor 1: Oxygen sensors (O2S) or heated oxygen sensors (HO2S) need to reach a minimum operating temperature of 750 degrees Fahrenheit to produce an ...

"All for one and one for all" ... For some reason, the PCM treated this odd little trio of O2 sensors like musketeers. Just about every experienced technician on the planet who has been around during ...