4kq Fuel distributor/pressure?

[Huw Powell]

> I have a '85 4000 Quattro. it wont start, but actually it will but
> only after about 20 minutes of cranking/turning off and on fuel pump
> manually

most of description edited... basically I think you are not getting 
enrichment (extra fuel) when the engine is cold.  You are then firing it 
enough over 20 minutes to get it warm enough to run at "warm idle" fuel 
levels.

Most likely culprit is Ben Swann's favorite, the thermo sender for the 
CIS system, which is found on the bottom of the coolant neck on the head:

http://www.humanspeakers.com/audi/cise2.htm

It can be tested by removing and measuring its resistance in ice water 
and boiling water, I think it goes from a fairly high resistance whne 
cold to 50-100 ohms or so when hot.

I don't think it has anything to do with your fuel pump relay, so just 
leave that in place.

You can also take a quick look at all the items on this list (but I 
still think it's the temp sender):

http://www.humanspeakers.com/audi/tuning-cise.htm

-- 
Huw Powell

http://www.humanspeakers.com/audi

http://www.humanthoughts.org/