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post #4 of (permalink) Old 18th July 2009
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Hmm. Problem with erratic idle/revs is the fact it could be a multitude of things. Have any fault codes been thrown up?

Some may say a coil /the coil pack could be on it's way out, I think it could be a sender problem.

I had an erratic rev problem on my Lag and tried everfything. It turned out to be the temp sender on mine. Cheap enough part to replace so if that's not your culprit you shouldn't be too out of pocket!

Have you tried disconnecting each coil in turn to see what happens?

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