Re: What's oxygen sensor?


"Ray O" <rokigawa@tristarassociatesDOTcom> wrote in message news:1cff5$447526a1$180fead6$18452@xxxxxxxxxxxxxxxxxxxxxxxxxxxx

"Billy" <Billy@xxxxxxxx> wrote in message news:sk8a72htcqr65i1qr9rj40tbu1igt4qkc8@xxxxxxxxxx
What's oxygen sensor? Does Toyota Camry have one?

An oxygen (O2) sensor does what its name suggests - it senses the presence of oxygen in the exhaust and sends varying voltage to the electronic control unit (ECU, computer, etc), depending on the amount of oxygen in the exhaust. The higher the oxygen content, the lower the voltage. By monitoring the amount of oxygen in the exhaust, the ECU will adjust the ratio of fuel to air.

A Toyota Camry will have anywhere from 1 to 4 O2 sensors, depending on the year and engine. A modern Camry with a 4 cylinder engine will have 2 O2 sensors and one with a 6 cylinder engine will have 4 O2 sensors.
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Ray O
(correct punctuation to reply)

Do you happen to know if a car is converted to use natural gas, will some or most pollution control devices not be necessary? Just curious.

mark_

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