P0161 Diagnostic Trouble Code Discussion for March 2023
Heated Oxygen Sensor (Bank 2 Sensor 2) Heater Performance
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| Help Request | Posted | |
| 2002 Mercury Sable GS 3.0L Poor Idle Quality, MIL Lamp on VIN: 1MEFM50U12 P0161: Ho2s bank 2 sensor heater circuit fault. Car came in with check engine light and all those codes. Replaced bank 2 sensor 2 o2 because failed resistance on heater circuit. Reset keep alive memory and still runs poor at times and p1131 and p1151 come back and p1270. When running it goes into closed... |
March 23, 2023 |
