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Rough Idle

Andy 1976

By Andy 1976,
in BMW 3 Series Forum

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Andy 1976 Newbie

Andy 1976

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I recently removed the plug on my air mass an now the car runs like a pig after refitting seems ok through the rev range it's just on idle !! I've since removed an refitted the plug several times and it running better with it off !!! Any advice please guys

btmaldon Experienced

btmaldon

Posted
Posted

With it running different when disconnected it suggests it is working. If there was no change it would definitely need replacing or cleaning. If your car has an idle control valve, this would be the most likely culprit.

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