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Where is bank 1 02 sensor located on 2003 Toyota matrix

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Hello, there are two sensors, one is the air/fuel ratio sensor which is in the pipe between the exhaust manifold and the catalytic converter and the oxygen sensor which behind the cat converter in the exhaust pipe, The most common fault is the front sensor but it depends on what the diagnostic code number is to be more specific.

Posted on Dec 03, 2014

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Posted on Jan 02, 2017

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