How to Replace a 2002 Protege 5 Oxygen Sensor?

Answer The 2002 Mazda Protege 5 has two oxygen sensors: one upstream and one downstream. The upstream sensor takes exhaust readings before the catalytic converter. This sensor also acts as an air/fuel se... Read More »

Top Q&A For: How to Replace a 2002 Protege 5 Oxygen Sensor

How to Replace an Oxygen Sensor in a 1999 Mazda Protege?

The oxygen sensors on your 1999 Mazda Protege monitor the mixture of fuel and oxygen the engine burns. A defective oxygen sensor can cause your Protege to have poor fuel economy and it results in m... Read More »

How do I Replace an O2 Sensor With Os-4000 Universal Oxygen Sensor on a 2002 Outback?

Most vehicles, including the 2002 Subaru Outback, have the same size oxygen sensor, which is 7/8-inch. The biggest difference in oxygen sensors is that some have a preheater and some don't. The 200... Read More »

How to Replace an Oxygen Sensor on a 2002 Silverado?

The oxygen sensor on the Silverado is a small electronic device hooked into the truck's exhaust manifold, and is used by the on-board computer to help monitor and regulate the mixture of air and fu... Read More »

How to Replace the Oxygen Sensor in a 2002 Dodge RAM 4.7?

The oxygen sensors on a 2002 Dodge Ram 4.7-liter engine regulate the amount of oxygen burned in the engine, and they improve fuel efficiency and reduce pollution. Over time, the Ram's sensors can b... Read More »