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My car has developed a problem where on a cold start the engine will idle around 1100 RPM before slowly dropping to around 1000 and then after a few minutes to the normal idle. When the engine's warm it idles normally and I've scanned it but it's not giving any fault codes. :thumbdwn:

Here's a video of the idle so you can see what I'm talking about:

http://www.youtube.com/watch?v=PBCXD7z85zk

At around 1.20 the secondary air pump switches off and then the revs starts to go to normal.. could this be anything to do with it?

Any help would be appreciated, thanks in advance._a_
 
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