Is it a sickness??

[Ben Doughney]

Hi all,

My 90 Quattro has been running really well- I managed to get the idle 
to go down to a sensible speed after replacing the throttle body, the 
idle switch was broken on the old one and the casting was cracked where 
the boot clamps on so I think air was getting in.

I also cleaned out the ISV and tightened up the connector prongs which 
were a bit loose. While I was doing this I noticed the insulation has 
burnt off the wire that comes out of the vacuum diaphragm that is 
mounted on the firewall. I didn't want to fiddle with that too much 
because the actual wire is quite corroded, and it looks about ready to 
break. I want to run a new wire, but it disappears into the wiring 
harness and I don't know where it comes out. I found another burnt wire 
under the dash, it goes back to a control box / relay with the part 
number: 443 907 393M, I am not sure if it is the same wire or not. Does 
anyone know what that relates to?

On another note, I am so pleased with this Audi that I couldn't resist 
buying another one when it came up cheap on the internet. It is a '83 
Coupé GT 5S, it hasn't run for about 8 months so I will have to get it 
going to take it away. That means I will have no space left now with 6 
cars! ;-)

-- 
Ben Doughney

Webmaster
VW Owners Club New Zealand
http://www.vwownersclub.co.nz