How to Know When to Change an O2 Sensor

by Dave Erb; Updated September 18, 2017

If a car has a problem with an O2 sensor, the check engine light will usually come on. Find out when to change the O2 sensor with the car maintenance tips in this free video on automotive repair from a professional auto mechanic.

About the Author

Dave Erb has been tinkering with cars as long as he can remember. Dave is an ASE Certified Master L1 Technician with 21 years experience in automotive care and maintenance. Dave opened Dave’s Ultimate Automotive in Austin, Texas in 1992 to deliver professional auto service in a family atmosphere at fair and honest prices.

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