Don't let failing oxygen sensors compromise your engine's performance. O2 sensors are critical to emissions control on your car, SUV or truck. As the name implies, the O2 sensor (also called an ...

At my last MoT, there was a hole in the exhaust so the lambda sensor could not read emissions. I had hole welded and passed. This time exhaust needs replacing, but garage insists lambda needs ...

I recently had an engine fault light come on. I took the car to my local garage and they ran a diagnostic - it came up with a rear lambda sensor fault. They cleared the code and told me that it would ...

Gordon Scott has been an active investor and technical analyst or 20+ years. He is a Chartered Market Technician (CMT). Vikki Velasquez is a researcher and writer who has managed, coordinated, and ...