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Discussion Starter #1
2 weeks ago, getting the CEL right after going through a pond.

I have tried to reset by disconnecting battery several times.

Had worked for may be 1~2 days each time.

So I sended the car to fix the exhaust leakage problem.

Seems not this reason.

I want to clean the plug first, if it would not fix it.

Shall I replace the downstream O2 sensor?

Is the plug right under the seat? Or just near the CAT?

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