Re: Spark plugs and gaps

[Sachelle Babbar <sbabbar@iris.nyit.edu>]

Another thing I've seen affect the high speed miss in my turbos has been
fine tuning of that co screw on the throttle body.

I've removed the isv on my current turbo and that precludes me from going
crazy with the screw adjustment asd it is my only means of idle control
i=until i install the pneumatic controller.

****************************************************************************
*Steve                                             Sachelle Babbar
*'87  5000CS Turbo 5spd 1.3-2.0 bar             <SBABBAR@IRIS.NYIT.EDU>
*Cockpit adjustable wastegate, AudiSport badge
*
*Disclaimer:"Any information contained herein is based purely on my own
*personal experience and may not necessarily reflect yours. Use caution as
*your results may vary from mine."
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On Wed, 17 Nov 1999, Randy McCall wrote:

> Stephane wrote:
> I have had the car (86 5KTQ) for about a year and a half, it is
> totally stock and I have put on about 20,000 km since purchased
> (odometer reads 249000 km).  Dist cap, rotor, plug wires are all new.
> Hunted down and killed a couple of vac leaks.  I have looked at each
> plug and they are a nice even tan color and electrodes visually appear
> in good shape, but I did not measure the plug gap (at the time I thought
> it would be too much of a PITA).  I can hit 1.4 bar but there is a mild
> missing under heavy load (read as WOT!!) which goes away at higher 
> rpm......
> 
> I have a friend who bought an '89 200Q a few years ago that although 
> chipped, it exhibited a similar "mild miss" on WOT as well.  Neither one of 
> us up to speed on the Q-list at the time, and we could never chase down the 
> miss in the 2 years he had the car.  In his case it was more pronounced, 
> and most noticeable under pedal to the metal loads.  Lee was pretty good as 
> a mech, with 20+ years experience in the airline industry, but no luck on 
> tracking that particular problem down.  I have never had the same problem 
> with either of my Type 44 TQ's, the '90 200Q 1.8bar, and the '88 5kCSTQ, 
> but always wondered what was going on.  The dealer took a shot at 
> diagnosing the problem (about a $300 swipe) with no luck either.  I suspect 
> that the spark plugs are not a relevant cure, but worth doing for peace of 
> mind.  If you are interested I can put you in touch with him to trade 
> anecdotal info, or maybe this will prompt someone else's recollection of 
> frequency valve problems, fuel distributor, or general widget malfunctions 
> that might be the real problem(s).  In any case your problem sounds too 
> close to his to ignore.
> 
> -Randy
> '90 200TQ 1.8 bar, Euro's , 2pc EM, and a much better Audi education now!
> 
> 
> 
> 
>