[T3] Idle Air Bypass

[Jim Adney]

On 7 Nov 2015 at 17:23, Daniel K. Du Vall wrote:

> How do you adjust the Idle Air Bypass? Not sure if that is the right name.

> I bought one from Jim a while back and it seems to flow air even after
> warmed up or hot for the matter.

I think you're asking about the Aux Air Regulator (AAR.)

It should already be properly adjusted. They never seal perfectly. 
The test is to close off the hose at the air cleaner with the engine 
running and fully warmedup. In that case, the idle speed should not 
change significantly when you close off the hose with your thumb.

Yes, you will still feel vacuum, but not enough air gets thru to 
affect the idle speed.
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Jim Adney, jadney at vwtype3.org
Madison, Wisconsin, USA
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