PO135 on a 1997 lexus ES300

Question

I just had all my banks replaced from a code PO301 and a PO305 and they also replaced my fuel injectors. Now I have my car back for 3 days and I have a code of PO135. Could this be related to the work I already had done to my car? what is the PO135?

Answer 1

HI there,

The code is for the heater circuit in the O2 sensor on bank 1. This usually requires sensor replacement.If it is related to the work it is most likely due to the original issue with the car burning the sensor heater out. Now that the car is running good the sensor is likely showing up as a problem.