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Old 24-10-2010, 05:27 PM   #1
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up and down idle

hello.
recently on my r32 rb20de my idle seems to be abit lumpy and sometimes go down to 200rpm then back up to about 600rpm when idling when warm. iv cleaned the afm all the earths look ok next week im getting plugs, fuel filter, oil change, what else could it be?
cheers.
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Old 25-10-2010, 12:52 AM   #2
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Clean the AAC valve (also known as the IAC valve).
For more info, do a search....
From your symptoms, this will be an almost guaranteed fix!

[edit] No harm in cleaning the cold start valve at the same time!
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Last edited by The Great White; 25-10-2010 at 01:18 AM.
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