Re: Idle problems - 1989 80 Quattro

[Richard Beels <beels@technologist.com>]

Vacuum leaks.  

Check the hoses that connect the ISV to the throttle body.  They run
underneath and catch a lot of heat and split easily.  The short elbow piece
is part# 054 133 997 and costs $12, the straight long one is part # 054 133
999A and costs $21.  I might have an extra of each so if you do need them,
let me know.  

You will also want to take your ISV off and spray it with carb cleaner to
clean out the accumulated oil-blow by residue that's in there.  COnnect a
9V battery to the leads and see if it "snaps" back and forth when making
contact.  You might also want to pop off the waffle boot and clean the
throttle plate, waffle insides and throttle butterflys.  I bet they're
grimy.  Airfilter cleaning/replacement is a given as well.

At 09:56 PM 1/31/1999 ,  Takis Dacey was inspired to say:
> My 80 Quattro will not idle properly. It usually starts ok but as it worms
> up, the idle becomes worst. The car is idling high or it dies on me.
> Acceleration is smooth and it cruises nice.
> I have installed new spark plugs, distributor cap & brush, sparkplug wires,
> O2 sensor. I have added the fuel additives for cleaning the fuel injectors.
> Changed the fuel filter last summer. I still have the same problem.
> Has anyone had a similar experience with an 1989 80 Quattro, or an Audi with
> the 5cyl., 2.3 ltr. engine ?


Cheers,
	Richard
	88 90Q "Hannu" - K+N, new vac hoses, lubed U-Joint, still 0.0 bar....
	88 Golf GTi - PRO Rally