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Re:2-4kq's stumbling when cold
Many people have been saying improper CO% adjustment will do this
so I am going to try to check that first. OR maybe an OXS heater element.
Luckily I have a spare OXS sensor I can putin that I know works. :-)
Thanks for the reply
1984 4000s quattro / modified/ awaiting Turbo Transplant.
1985 4000 quattro / Silver / Fixing it Up.
1987 4000cs quattro / Saphire Metallic Blue/ Girlfriend's
1996 A6q / Volcano / Dads Car
*****1985 5kt / PARTING OUT!
On Fri, 29 Jan 1999 MHLIGGINS@aol.com wrote:
> The '84 4KQ I got from John Mallick has the same symptoms. He said Audi did
> LOTS of things to try to track it down. Think I recall all the ususal -
> injectors, cold start valve, etc. I recently changed the ISV, to no avail,
> because I had one from the parts car. Based on what it's doing I suspect the
> timing advance is not working properly. I have not had time to pull the
> distributor and look things over. I've got a spare 4K distributor that I'll
> try, plus want to look at this one closely.
> This assumption is based on how some of my older U.S. vacuum-advance cars
> acted when the advance was wrong. The thing that bugs me with the 4K is that
> it's not consistent. Some days it idles OK after warm, others it doesn't. But
> the base symptoms do feel like a timing advance failure. The only other thing
> I can think of is the fuel distributor and I **really** don't want to find out
> that it needs to be replaced. :(