I am getting a P0141 code. The Innova reader is saying "02 heater circuit Bank 1 Sensor 2"
Is this the after Cat sensor?
Who has had experience with this. Do you think the sensor is bad, or went bad because of the cat being bad. Would the vehicle be able to differentiate these conditions.
I don't want to just shotgun fix the sensors if the cat could be the root problem.
Thanks in advance for any help.
BTW - vehicle has 183,000 miles. Vehicle will throw code when not up to operating temp. If I clear it, it will not come back again until next time running after a cold start.