Oxygen and AFR sensors should not be cleaned. They are quite trouble free and I consider the upstream sensors to be part of a high mileage tuneup. A competent technician (or anyone who understands scan tool data) can evaluate the condition of these sensors.
Oxygen sensor
Is it a good idea to clean the oxygen sensor(s)? Have you ever cleaned one before? And how often should it be cleaned?
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1 - 1 of 2 Posts
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