Re: 4000 Mods - exhuast, struts, FI

[Huw Powell <audi@mediaone.net>]

> I can start to fix up my (wife's) '85 4000 SQ.
> 
> It needs exhaust replacement from the CAT on Back,  Front Struts, and fuel
> injectors.

> BTW on this, car starts rough cold, injector cleaning helped for awhile.  I
> was going to clean/replace the warmup pressure regulator, except I didn't
> see one mounted on the side of the engine block.  I've had this car for over
> 7 years and I'm just noticing.  Is there a warmup regulator that can be
> serviced or repaired - previous VW's I had with this problem I resolved by
> cleaning/ replacing warmup regulator.

No warm up regulator, the car has CIS-E.  Warm up enrichement and idle
functions computer controlled via control pressure actuator (grey box on
front of fuel dist.) and idle stabiliser valve, silver cylinder sticking
out of intake boot over cam cover.  both have parameters that can be
measured and messed up by adjusting.

I would examine basics before doing any adjusting.

1. separate and clean all electrical connections under hood.

2. look at normal "tune up" parts, cap, rotor, plugs, measure wires,
etc.

Check for leaky, soft, crakcing, etc hoses.

When you do the injectors you'll be replacing a handful of cheap plastic
and rubber parts that can also make little air leaks.

-- 
Huw Powell

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

82 Audi Coupe; 84 4kq; 85 Coupe GT; 73 F250

http://people.ne.mediaone.net/audi/thoughts.htm