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Idle air control valve

Posted: 09 Sep 2011
by mickey taker
any body know if its possible to clean these ,


The Idle control Valve controls the amount of air let into the inlet manifold when on idle. The valve has a 'Pin' which moves in and out incredibly fast, meaning the engine idle can be controlled accurately.

mine is causing problems on the golf ( tick over going up and down stalling etc)
VW want £320,00 for a new one but can get a pattern part for about £60.00
just wondered if it could be saved with carb cleaner or something similar

Re: Idle air control valve

Posted: 09 Sep 2011
by jayw
Never tried, but if the problem is purely down to the needle being gummed up i see no reason why you can't just clean it. Of course, if it's a physical fault or malfunction that's a different story... :roll:

Re: Idle air control valve

Posted: 09 Sep 2011
by mat_the_cat
If only everything in life was as reliable as a Volkswagen...

I've successfully cleaned them before, but we also had a problem on the 205 where it was closed all the time - it turned out to be an ECU fault holding it closed rather than dirt making it stick. Worth a try, as it seems more common to be dirt.

Re: Idle air control valve

Posted: 09 Sep 2011
by Vanny
fill with a good dose of WD40, leave for a while, tip WD40 out, reassemble, allow remaining WD40 to burn off through engine.

Re: Idle air control valve

Posted: 09 Sep 2011
by mickey taker
thanks guys will do it tomorrow

Re: Idle air control valve

Posted: 10 Sep 2011
by Philhod
Could be worse Mickey. The later ones have the dreaded VW MAF sensor, for which they want twice as much as that.

If only everything in life worked like a volkswagen [chin] [chin] [chin] [chin] 8)

Re: Idle air control valve

Posted: 10 Sep 2011
by docchevron132
what vanny said, although, since I know next to fuck all about VW's, what injection sytem does it run? I assume Motronic?

Re: Idle air control valve

Posted: 10 Sep 2011
by mickey taker
its the digifant set up on mine

Re: Idle air control valve

Posted: 10 Sep 2011
by Vanny
Is that like a really really small elephant?

Re: Idle air control valve

Posted: 10 Sep 2011
by Philhod
No it's one of those elephants that leaves it's fingerprints in the butter :lol:

Re: Idle air control valve

Posted: 13 Sep 2011
by mickey taker
thanks guys it worked , the idle going up and down ( from 1400 revs down to about 400 ) has now settled at a respectable 800, it still dips sometimes when you slow down for junctions etc but at least its not cutting out anymore