misfire on cylinder 1 mazda protege 2001

Question Description

already changed spark plug wire but still  makes rattling sound

Final 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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