Engine Misfire Under Load on Mazda MX-6

Vehicles with a V6 engine may develop an engine misfire under load (acceleration). This can be caused by a valve cover gasket leaking oil into a spark plug well, shorting the spark plug to the cylinder head. To repair this concern, the valve cover needs to be resealed and the spark plugs and wires should be replaced.

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Average mileage: 150,000 (134,000–166,000)
Engine affected: 2.5L V6
5 model years affected: 1993, 1994, 1995, 1996, more1997
7 people reported this problem
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problem details
1993 Mazda MX-6 - 2.5L V6 166,000 mi,
Backfires under load rpms under load max out at 2200 rpms then drops to about 200 rpms and then catches back to idle keeps doing this