[T3] Since I replaced the runner boots and all vacuum lines noticed

Jim Adney jadney at vwtype3.org
Thu Jun 6 14:20:25 PDT 2019

On 6 Jun 2019 at 10:46, William Jahn wrote:

> I felt the idle contact was the most important , it's there for a
> reason , don't know exactly what it's function is in relation to what
> the ECU see's. 

It's function is to turn the FI off when you take your foot off the gas but the 
RPMs are still high, as in when you're coasting down to a stop light. During 
that time, the brain turns the FI off, so you don't use any fuel, get maximum 
gas mileage, and, ideally, pollute as little as possible.

This works if the RPMs are above something like 1400 and continues until 
the RPMs drop to something like 1100.

Jim Adney, jadney at vwtype3.org
Madison, Wisconsin, USA

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