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Old 08-24-2011, 07:57 PM   #1
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Join Date: Mar 2010
Location: hamilton
Posts: 137
Rough engine ideal, where to begin?

sounds more like spark plug went out, but checked the spark plugs by unplugging the cables one by one and noticed a difference in engine performance by unplugging each one. that means the spark plugs are ok!

what would be a usual issue on E30 M42 engine?
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