Question about Cars & Trucks
The O2 sensor measures the fuel/mix after it has been burned. The O2 can tell if the engine is running rich or lean and constantly adjusts the fuel mix to a proper level. As a secondary function, there is usually a pair of O2 sensors before and after the Catalytic converter.
The readings from the first sensor are compared to the readings of the second sensor to rate the efficiency of the Catalytic converter.
Posted on Oct 31, 2012
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Posted on Jan 02, 2017
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