Unveiling the Secrets of the PO141 Code A Step-by-Step Analysis

1997 - 2003 F150 - Help on codes P0141 and P0301 - Went to Checker Auto for OBD II. Got these codes. 02 sensor heater circuit malfunction ... Sensor 2 is typically a heated oxygen sensor (HO2S.) A short circuit or excessive resistance in the HO2S heater circuit can create improper current flow to the ... The rear O2 sensor isn't used by the ECM for engine operation. It's function is to monitor the exhaust flow for excess O2 when the engine is running too rich ... My '01 V6 came up with a P0141 code after sitting for a month. I replaced bank 1 sensor 2 with a Denso one and I still have the same code. P0171 means the pre O2 sensor is reading a lean condition.....low fuel pressure, a vac leak, an exhaust leak, etc. P0141 means the post O2 sensor is taking too ... Code P0141 is set when the Rear Oxygen Sensor does not show signal activity indicative of closed loop fuel system operation within the required time. Getting a code in the first couple of weeks is normal. It is a part of the break-in period. If you are still getting the code, after 100 miles, contact active ... The code in the present thread means the sensor itself has failed - probably the heater circuit. Disconnect the negative terminal on your battery for ten minutes. This will hopefully clear the codes and do a soft reset of the computer. enginecodes #P0141code The P0141 engine code typically indicates an issue with the oxygen sensor, specifically the Bank 1 Sensor 2 oxygen ...