Mazda 3 Engine Light Code P0421

Posted on 19 Feb 2024

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Engine light goes on and off periodically

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Mazda 3 2012 has a p0303 code. On cold starts or low gas, the check

Check engine light on with code p0421, how do i fix it?

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Mazda 3 2012 has a p0303 code. on cold starts or low gas, the check

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