5KT : Intermittent high idle

[quk@sievers.com (Phil Payne)]

In message <199704151814.LAA03070@gonzo.wolfenet.com> orin@wolfenet.com writes:

> > > I found that at the correct ISV current, I got the correct RPM.  Of course,
> > > if your ISV is in need of cleaning, I doubt this would be the case.
> 
> > I think it also assumes constant mixture.  If the air mass sensor has been 
> > tampered with, it may prove impossible to set current and RPM without adjusting 
> > the mixture.
> 
> It would require the mixture to be correct... not a problem on O2 sensor
> equipped cars (like mine) which will control the mixture at idle.

Agreed.  Forgot that most US cars are closed-loop.

--
 Phil Payne
 phil@sievers.com
 Committee Member, UK Audi [ur-]quattro Owners Club