[T3] cool weather idle hunt

Dave Hall dave at hallvw.clara.co.uk
Tue Jan 10 05:46:57 PST 2017

It certainly sounds like voltage-related problem.  I've heard of quite new
Type 3s running poorly when the Heated Rear window was on.  I doubt that
ever happens now they've mostly gone high-resistance,but the 380W generator
is pretty close to maxed out in those conditions when running at higher
rpms, let alone idling, and the demand from the FI is significant.  Hi
output bulbs or standard 45/45?  I'd not thought of the load of side-lights
etc, but maybe LED bulbs there could help when conditions are that marginal.

UK VW Type 3&4 Club

-----Original Message-----
From: type3-vwtype3.org [mailto:type3-vwtype3.org-bounces at lists.vwtype3.org]
On Behalf Of Daniel Nohejl
Sent: 10 January 2017 00:49
To: type3 at vwtype3.org
Subject: Re: [T3] cool weather idle hunt

I have noticed, though, that this hunt ALWAYS happens when driving in
traffic with the headlights on: thus it mostly happens at night or on rainy
or snowy days. It SOMETIMES happens under other conditions, but I haven't
logged enough of them to report back anything of interest. 

I have a little cigarette lighter voltage meter and I've plugged it in
during this hunt but haven't seen any voltage numbers I haven't seen before.
With the headlights on in traffic, the voltage can drop as low as 11.5 but
it comes back up to about 13.8 or more once I get back on the gas which has
long been the case.

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