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Re: Ahab Needs Help

At 03:59 PM 9/29/97 +0000, Kerry wrote:
>I'm hoping for a little more direction before the Great 
>White Whale goes to my mechanic this week.. 
>	Symptom: When car(91 200q) nears full boost, power 
>suddenly drops off substantially and the motor runs quite 
>roughly. Boost also drops. If I back off on the gas, all is 
>well again.
>	Plugs have been replaced, IC to TB hose replaced, bypass 
>valve is recent, hoses have been inspected closely (yup, I 
>know I still need to pressure test). 
>	Suggestions include: frequency valve, plug wires, 
>cap/rotor, static timing, pull fault codes. 
>	If anyone has any more helpful ideas, I'm all ears.
>Thanks to those who have contributed thus far.
>91 200q (not all is well)
>89 80q (always runs perfectly)
I had exactly this symptom when my car was in warranty.  The boost would
drop to around 1.0 or 1.1 Bar.  After spending $5500 (Audi money) they
finally fixed it and said that the problem was related to timing.  I dont
really understand what timing adjustment was made, but Ned Richie seems
to...  BTW, they had the car for > 2 weeks the last time and I got to wear
most of the tire rubber off a new Altima - not too bad for a cheap economy car.
Ralph Poplawsky
'91 200TQ
'95 Volvo 850TW (gosh, it always runs fine!)