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Q: I would like to know how many O2 sensor in Toyota Caldina, model 2002 AT211 and auto transmission. 2002 Toyota Caldina

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in below model box, i did not find out Caldina.

My car has 180000 miles.
My car has an automatic transmission.

Hello - all of the third generation Caldinas (2002-2007) came with 4-cylinder engines, and should have 2 oxygen sensors. There will be one before the catalytic converter, and one after the catalytic converter in the exhaust system. For assistance, I recommend an oxygen sensor replacement service performed by a mobile, professional mechanic, such as one from YourMechanic, who will come to your location, and replace this component.

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Your vehicle is equipped with two O2 sensors. One is in the exhaust manifold downpipe and the other sensor is after the catalyst.

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