My PT Cruiser uses a lot of petrol. They say my sensors on the exhaust are dirty. Where
are these sensors, how do I remove them and how do I clean them?
To my knowledge oxygen sensors are working or not. I've never had to clean any personally. If they haven't been changed and are 10 yrs old now it would not be wasting your money to change them. To know if they are good or bad you need an engine scanner to watch them fluctuate. Good luck, J
The are located in the exhaust. You need a special wrench and some strength to remove, and like JWM mentioned, cleaning is not necessary.
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Kelly Little Ashford