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Where is the Oxygen sensor located on 2002 Toyota Highlander?

The oxygen sensors on the 2002 Toyota Highlander should be located on the exhaust manifold and before the catalytic converter

The following are steps to locate the oxygen sensors:

1. Locate the exhaust manifold. The exhaust manifold is located on the side of the engine, connecting to the engine's exhaust ports.

2. Follow the exhaust pipe from the exhaust manifold towards the catalytic converter. The oxygen sensor(s) will be located somewhere along the exhaust pipe, between the exhaust manifold and the catalytic converter.

3. The Oxygen sensors are typically screwed into the exhaust manifold or exhaust pipe and can be identified by their distinctive shape and wiring connector.

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