Sometimes the problem isn’t a failed sensor at all. In this video, we uncover how a faulty wiring repair caused major driveability issues and misleading symptoms. Follow along as we diagnose the real ...

I drive an '04 Toyota Matrix which has remained in pretty good condition even thought I drive the hell out of it. I've already put almost 43k on it, but I suppose it could be worse. The only problem I ...

P0134 – O2 Sensor Circuit No Activity Detected Sensor 1 Bank 1: The front heated oxygen sensor (or O2 sensor 1) is placed into the exhaust manifold. It detects the amount of oxygen in the exhaust gas ...