Misfires Under Load on Mazda Miata MX-5

Misfires under load (acceleration) can be caused by spark plug wires arcing to the cylinder head in the spark plug wells. Water in the spark plug wells can also cause the same problem so careful diagnosis is needed.

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Average mileage: (–)
Engine affected: 1.6L 4 Cylinder
4 model years affected: 1990, 1991, 1992, 1993
4 people reported this problem
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