(Fwd) Re: Coil change(cold start prob)

["Bob & Debby Schuster" <rschuster@mail.enter.net>]

Forwarded message:
From:     Self <Single-user mode>
To: Paul Hanley <duckie@199.45.32.39>
Subject: Re: Coil change(cold start prob)
Date: Mon, 19 Jan 1998 21:14:21 4

> Date:          Mon, 19 Jan 1998 11:06:53 -0500
> To:            scirocco-l@privateI.com
> From:          Paul Hanley <duckie@199.45.32.39>
> Subject:       Coil change(cold start prob)

> Hello Guys and Gals:
> 
> Well, I changed my coil Saturday, but my cold start problem still exists.
> Idles low unless I rev the engine once or twice, then it idles at about
> 1.05-1.1k. As I rev the engine, it stumbles. This is still too low, and
> when the aux air regulator closes, then it idles at about 900. 
> 
> Oh well, I tried Paul. I measured the primary and seconday on the old coil
> and the numbers fall well within operating range so that coil was good
> anyway. I am running out of old parts to throw at this thing. Nothing that
> a match and a bucket of fuel can't cure at this point. ; )
> 
> Regards,
> Paul Hanley
> 
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> 
My son's Scirocco  had a bad cold starting problem.
After numerous attempts to fix it (tune up, cold start injector,
thermo time switch, fuel injection pump relay),
a VW mechanic that I know helped me with the solution.
Connect a large braided ground strap between the cylinder
head, one of the large bellhousing to block attaching 
bolts, and the battery negative terminal. There is enough of 
a voltage drop when it is cold that the plugs won't fire.
Make sure that the connections are clean (use wire brush or
Scotch-brite).
We have not had any problems since this was done 2 months
ago. Hope this cures your problem.
Good Luck,
Bob Schuster
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