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The check engine light on a 1997 Toyota RAV4 can be triggered by various issues, including a faulty oxygen sensor, a loose or damaged gas cap, emissions system problems, or issues with the engine's performance, such as misfires or poor fuel efficiency. It may also indicate problems with the vehicle's onboard diagnostics system. To accurately diagnose the cause, it's best to use an OBD-II scanner to retrieve the error codes stored in the vehicle's computer. Regular maintenance and timely repairs can help prevent the light from activating.

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2w ago

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