P0141 –Oxygen Sensor Heater Circuit Malfunction (Bank 1, Sensor 2) P0155 – Oxygen Sensor Heater Circuit Malfunction (Bank 2, Sensor 1) P0161 – Oxygen Sensor Heater Circuit Malfunction (Bank 2, Sensor 2) Is code P0135 serious? In most cases, the P0135 code can be dealt with at your...
A trouble code P0135: O2 Bank 1 Sensor 1 Heater Circuit Performance is not hard to diagnose when it pops up and lights up the check engine light (CEL) on your 97, 98, or 99 Dodge or Plymouth Neon. In this tutorial, I'll show you how to test the upstream oxygen (O2) sensor's ...