2nd IAC (idle air control sensor) prüfen

Zu faul zu übersetzen:

You have problems with the idle? High idle, low idle?
Maybe it is the idle air control valve.
Also know as IAC, idle air control solenoid, idle air control motor.
It sits in your throttle body and either the dealer can check it somehow with a scanner or you can do also an easy DIY check.

First remove the iac.
Therefor you have to remove the 1 star screw that holds it and than you can pull it out. A screwdriver used as a lever could be helpfull - just stick it in the gap and twist it, iac comes out very easy.

First check if you can move the black plastic valve piece to see if the iac is just stuck. It should move very easy and snap back in closed position.

And now it comes the fun part:
Clean the iac, press the shown position on your lips and blow in it.
It should NOT be possible (or just a little bit if you blow very hard) - if you can easily blow through it you can be sure that you need to order a new iac cause one of the little diaphragms inside is fucked up!

Unfortunately it is not possible to open and repair it.

First aid = remove the iac connector and take care that the engine does not die on the next stop - but better that than annoying 3000 rpm idle...

[Blockierte Grafik: http://lh3.ggpht.com/_08Eqp0neK6c/TE1zotFbdYI/AAAAAAAAJbI/2d68WwoLPBg/s800/iacvalvesrt4.jpg]

You can order a new IAC at mordernperformance!