Maintaining your vehicle’s oxygen sensor is crucial for optimal performance and fuel efficiency. An oxygen sensor monitors the level of oxygen in the exhaust gases and ensures the engine runs ...

I live in New Jersey, one of the states that mandates inspection for all vehicles newer than 1995. My daily driver, a Jeep Cherokee, happens to be a 1996 model year with an OBD-II sensor, meaning I ...

When gas powered cars get older the catalytic converter, or converters if you have a V style engine, can lose their efficiency and set off a CEL, or check engine light. P0420 is a code for a failing ...

One of the most common problems with an engine that is not putting out as much power or pep as you are used to, is that of a faulty or failing mass air flow (MAF) sensor, both with and without a check ...

The other sensors aren't there as spares - it's not a matter of using a backup one. In general, there would be a sensor for each exhaust manifold (so 1 for a straight 4 cylinder engine, 2 for V6 etc) ...