misfire on cylinder 1 mazda protege 2001

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sqrynpehm

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Description

already changed spark plug wire but still  makes rattling sound

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Explanation & Answer

Caused by abnormal combustion which results in excessive heat and pressure in your engine's combustion chambers.

It can be as a result of using fuel with too low an octane rating.

One way to reduce the risk of detonation is to use a higher octane fuel. If switching to a premium grade of gasoline fails to eliminate your detonation problem, it means something else is amiss.

Feel free to contact me if you have any other questions regarding your problem.

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