Idles Rough, Misfires, and Possible Check Engine Light on Mazda Protege
Problem overview
A loose or corroded ground terminal on the driver's side of the cylinder head can cause a rough idle, misfires, and there may be trouble codes. Restore the ground to the cylinder head.
44 people reported this problem
5 commentsMazda Protege vehicles with this problem
14 model years affected
Average mileage: 117,183 miles
(60,000 - 170,000)
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