How repair & clean oxygen sensors (7 steps) ehow, Oxygen sensors are small devices on your car or truck that measure and balance the oxygen to fuel ratio. part of the emissions control system the sensor feeds.How clean o2 sensor toyota nation forum : toyota car, I had good luck using pb blaster and an o2 sensor socket set which i picked up at advance auto. the pb blaster just needs some time to do its job before you start.
How To Clean a Mass Air Flow Sensor (MAF)
Moheb Ghazi - Autotronic - 4826 - Group 2