DTC P0141 stands for “Oxygen Sensor Heater Circuit Malfunction (Bank 1, Sensor 2), and this indicates that there’s something wrong with the heater circuit of engine bank 1’s downstream O2 sensor. P0141 is typically caused by a faulty oxygen sensor heater, but it is also caused by problems with a vehicle’s circuitry or its PCM. Causes. A code P0135 may mean that one or more of the following has happened: O2 Heater element resistance is high. Internal short or open in the heater element. O2 heater circuit wiring high resistance. open or short to ground in the wiring harness. Your Corsa will likely throw P0420 or the P0430 code. To diagnose a downstream O2 sensor failure, you can use an OBD2 scanner to check for diagnostic trouble codes related to the sensor. Upstream O2 Sensor Failure. Your Opel Corsa’s upstream O2 sensor(s), also known as the pre-catalytic converter sensor, measures the air-to-fuel ratio in your 11765 posts · Joined 2013. #4 · Jun 21, 2019. I'm not familiar specifically with the Vivaro B,but all th 1,6 D's have an exhaust pressure difference sensor, as you can see from the pic they are at the end of the 2 difference pipes from the dpf,so just follow the pipes,of course it may just be a pipe gone rather than the sensor being faulty Vauxhall Corsa Genuine Bosch Lambda Oxygen O2 Sensor Pre Cat 93190419 (Fits: Vauxhall Corsa 2009) (3) £59.45. Click & Collect. Was: £170.00. Free postage. hi. i had the p0170 malfunction trim bank 1 error code. the problem was vacum leak on brake servo. so check any vacum leaks. next you should ckeck maf sensor Z20LET Corsa Progress Thread 21mm or 22mm spanner or if not some lambda sensor sockets or heat it up if ur replacing it anyway. Save Share. Reply Quote Like. R When the signal from the O2 sensor is detected by the PCM as being stuck lean or biased lean, this DTC is set. The P2270 DTC refers to downstream sensor (after the catalytic converter), sensor #2 on bank #1. Bank #1 is the side of the engine that contains cylinder #1. There may be a third sensor downstream, if that is the problem, a P2274 is set. EKU5.