Re: '85 4KSQ Stalling vs. 91 200TQ Stalling

["Mike Watz" <watz@csdarc4.cnd.hp.com>]

Ok....... now I'm curious as to what would cause these EXACT same symptoms on
an '85 4KSQ?  I know for a fact that it isn't my turbo bypass valve...

;-)

Mine hasn't quite reached the stall stage, but it gets precariously close to 0
rpm's some times when coming down from driving rpm's.

Thanks!

-Mike-
'85 4KSQ (200k+ ? broken odo)

> >QListers,
> >
> >We have a nagging problem with our 1991 200 TQ (20v) sedan. To date it has
> >perplexed 2 dealers and 1 independent mechanic. The car has 98K miles on
> >it.
> >We've owned it since new and have had all regularly scheduled maintenance
> >performed at the local dealer.
> >
> >SYMPTOM:
> >Car stalls on when shifting @ 3000 rpm after hard acceleration. If I shift
> >at a higher or lower engine speed the problem doesn't occur. If I
> >accelerate normally, it doesn't ocur.
> >
> >I have noticed that as I pass through neutral when I shift @ 3000 rpm after
> >hard acceleration, the tach needle drops to 0 rpm and the car stalls.
> >
> >Under other shifting conditions, the tach needle drops to ~500 rpm and then
> >bounces up to ~800rpm as I pass through neutral.
> >
> >ATTEMPTED FIXES:
> >1) Engine speed sensor replaced
> >2) Injectors cleaned, later replaced
> >3) Throttle position sensor replaced
> >4) Breather hose and vacuum  hoses replaced
> >
> >No new diagnostic failures reported on computer readouts after the engine
> >speed sensor was replaced. Various electrical tests performed per Audi
> >repair procedures check out within tolerances.
> >
> >As you can probably tell, I'm not a mechanic so I may not have given enough
> >info here. Any help would be greatly appreciated.
> >
> >Regards,
> >Oscar
> >
> >
>
>
>-- End of excerpt from Mike Miller



-- 
Michael C. Watz
CSD
Non-hp-ftcollins
mike_watz@fc.hp.com