quattro digest, Vol 1 #4088 - 18 msgs

[Larry C Leung]

I can't take credit for the ground wire fix. Credit
MUST be given to Josh Van Tol, whom responded
to my intermittent sensor problem post. I'm about to
try what Doyt had tried myself. Just MUST remember
to disconnect any faulty or resistant existing grounds,
as or you will get floating ground issues, of which I can't
imagine what effects will occur.

Note, one POSSIBLE way to test for floating grounds is
to test the voltage from 12V hot to ground in several
places around the car, especially after replacing a ground
strap. IF the voltage readings aren't the same all the way
around, you should check the grounds. A VOM will not
always detect a floating ground by doing a resistance measure,
as the the current flow of the meter is unlikely to be enough
to have a small resistance show.

LL - NY


> Date: Sat, 19 Oct 2002 14:59:45 -0400
> To: Larry C Leung <l.leung at juno.com>
> From: "Doyt W. Echelberger" <Doyt at NWOnline.Net>
> Subject: Re: Engine Block Grounds, Type 44TQ MC2
> Cc: quattro at audifans.com
>
> I spent a couple hours today putting in a huge direct ground between
> the
> battery and the ISV bracket anchor bolt. I already had 10 gauge fine
> strand
> copper wire from the battery to the eurolights, and I spliced into
> it for
> the ISV ground. I'm working on an MC-1, but it isn't that
> different.
>
> The brake warning light on startup went away. It had been coming on
> for 20
> seconds at every startup, and nobody could explain it.
>
> The engine runs smoother. The ISV doesn't hang up at 1,200-1,800
> revs like
> it once did randomly when I arrived at stop lights.
>
> I am amazed and delighted.
>
> Larry, you are onto something important with your "improved ground"
> project.  Scott Mockery advocates special attention to grounds on his
> web
> site, and has been advocating it for years. So I always just
> polished up
> all the engine grounds every few years. What seems to be required is
> a new
> ground path.
>
> Thanks, Larry.  You changed my automotive life.
>
> Keep up your investigations.
>
>
> Doyt Echelberger
> 87 5ktq in Ohio   USA