Oxygen Sensors (O2) -Measure The Oxygen Level In Your Exhaust

So, every car made after 1996, has oxygen sensors (O2), before and after, of each catalytic converter.

Most cars, have two (O2) sensors. However, there can be as many as 4, (O2) sensors, depending on your engine and exhaust. Actually, (O2) sensors, don’t even work, until they have heated up, to over 600 degrees. Therefore, when you start a cold engine, the (O2) sensor is not even working.

Oxygen Sensors (O2) -Measure The Oxygen Level In Your Exhaust
Oxygen Sensors (O2) -Measure The Oxygen Level In Your Exhaust

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BY DANNY BENDER