P0161 Diagnostic Trouble Code Discussion for June 2012
Heated Oxygen Sensor (Bank 2 Sensor 2) Heater Performance
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| Help Request | Posted | |
| 1997 Mercedes-Benz S420 4.2L MIL Lamp on VIN: WDBGA43G5V P0161: b2s2 oxygen sensor heater circuit. I need some help on a crazy oxygen sensor car. It has been to 2 dealers and here for rear oxygen sensor codes. oxygen sensors have been replaced by both dealers and by us, with bosch and oem parts, problem still returns. All wiring has been checked, for ground... |
June 06, 2012 | |
| 1998 Mercedes-Benz E320 3.2L MIL Lamp on VIN: WDBJF65F1W P0161: O2 Sensor heater left O2 after TWC. Good morning, I'm trying to find what ground signal or what is normal for the rear heater circuit on this vehicle. I have my voltage going to O2's, and the computer is grounding the O2's for 100ms, 1 time every second. For the 100ms the rear heaters are on the... |
June 27, 2012 |
