Mastering the Po141 Code Symptoms, Causes, and Solutions

P0141 indicates a problem with the secondary O2 sensor heater element not the cat. Did you replace the primary or secondary O2 sensor? Trending ... If you changed the secondary o2 sensor and you still are getting the DTC P0141 code then you have a wiring problem more than likely. Leaving ... Disconnect the negative terminal on your battery for ten minutes. This will hopefully clear the codes and do a soft reset of the computer. 1)Fault is intermittent caused by poor contact in the sensor's and/or ECM's connector or was repaired and ECM memory was not cleared. Actually it refers to Bank one Sensor 2 which is the one behind the cat.... The code refers to the O2 bank2 sensor. It's the one on the exhaust pipe after the cat. It's connector is on the gearbox body. 2nd Gen Ram Tech - P0141 code - P0141 O2 Sensor Heater Circuit Malfunction (Bank 1 Sensor 2) Is this the one beind the cat? 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 ... Yes Bank 1 sensor 2 monitors catalytic efficiency, however, the heater circuit is not working, meaning the heater inside the sensor is ...