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jimcarver · Joined: 12 Dec 2006 Posts: 45 Location: London, UK

Hey guys i have bought a used AAV from ebay, is there anyway i can tell if its any good before fitting it.
I know i should be able to look through it, which i can but its not totally clear, is this normal?
Cheers

924RACR · Posted: Fri Jan 19, 2007 12:50 am Post subject:

Yes.

Now stick it in the freezer, you should no longer be able to see through it.

Finally, check resistance with an ohmmeter.
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Benino · Posted: Fri Jan 19, 2007 2:19 am Post subject:

An auxiliary air valve provides extra air when the engine is cold. That means it will be open to it's maximum when it's in the freezer. Give it 12 volts for a while and it should slowly close up so you can't see through it.
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rusto · Joined: 06 Jan 2007 Posts: 11 Location: Portsmouth, UK

You can adjust these too. With the engine cold, start it and if you're not happy with the fast idle speed, loosen the 7mm nut and move the stud to get the rpm you want. Do it quickly before it warms up and starts slowing the rpm.

jimcarver · Joined: 12 Dec 2006 Posts: 45 Location: London, UK

I looked on some previous posts and it seems normal enough when it comes to freezing it (it opens so i can see through about half of the hole). Now i am thinking it might have a problem closing. Its been in the house at room temperature and it doesnt seem to close much. It still stays about a half to a third open, i was under the impression i should just be able to see through a couple of millimenters at this point.
Any ideas what problems it would cause but not closing

Ozzie · Posted: Fri Jan 19, 2007 7:57 pm Post subject:

Connect 12v up to it for a minute and see.
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Paul · Posted: Sat Jan 20, 2007 2:52 pm Post subject:

Think about it, if it closed completely at room temp, would your idle speed be normal when you start the car for the first time on a 70 degree day?
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