The PO141 Code A Practical Guide for Auto Enthusiasts

R56 :: Hatch Talk (2007+) - O2 sensor heated circuit P0141 code persistent - I have a 2008 Cooper S with 95K miles. 2 months after purchase, ... P0141 indicates a problem with the secondary O2 sensor heater element not the cat. Did you replace the primary or secondary O2 sensor? Trending ... 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 ... Actually it refers to Bank one Sensor 2 which is the one behind the cat.... The P0141, "Sensor 2 Heater Circuit Malfunction" has been the one and only code to pop up so far on her car over its 112,000 mile life. I ... Reading the ODBII codes gave me error P0141, Sensor 1, Bank 2. So I did some googling, and I was pretty sure that this was the "rear" o2 sensor (easy access ... P0141 O2 Sensor Heater Circuit Malfunction (Bank 1, Sensor 2). Jump to Latest. 27K views 26 replies ... 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 ... The engine light in my 2003 SVTF came on yesterday... took it to Autozone to get the code checked and it's O2 P0141 - Sensor Heater Circuit Malfunction. Disconnect the negative terminal on your battery for ten minutes. This will hopefully clear the codes and do a soft reset of the computer.