Walker Product's Oxygen Sensors are precision made for outstanding performance and manufactured to meet and exceed all original equipment specifications and test requirements.

Function:

The oxygen sensor, located in the exhaust system, determines the oxygen content of the exhaust gas. Since the amount of oxygen in the exhaust gas is a very good indictor of combustion efficiency, it is also the best place to monitor the air fuel ratio.

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O2 Sensor Questions & Answers

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