[s-cars] Help Chipping a Virgin

[Ian Duff]

Boost leak maybe? What did you use for hose clamps?

-Ian Duff, sent from my mobile, please excuse the brevity, spelling and punctuation.

> On Oct 12, 2015, at 23:49, Brian Pleet <subscriptions at strategico.ca> wrote:
> 
> After 20 years with my 95.5 URS6 , I finally bought the Intended
> Acceleration basic chip set in preparation for the Audi Sonoma track event
> this coming weekend. Too late, it seems because although it feels overall
> much quicker, when I go to the floor, it hesitated and hisses from under
> the hood until I release the pedal.
> 
> So far, I replaced the 20 year old blow-off valve, no change. Then I ran it
> with a stock ECU, no change. Then I ran with a used (unknown) Wastegate
> Frequency Valve and it ran fine with no boost, stable enough to get home
> from Seattle. Then I replaced the WGFV with a OE unit and the problem has
> returned. I opened the wastegate cover but no obvious issues, diaphram was
> perfect. Today, I swapped the mass air sensor and the hesitation went away,
> but the hiss continues and under extreme acceration, the oomf is absent
> until it gets above 4000RPM. More fun to drive, but not perfect for the
> track.
> 
> Historically, and maybe related; the fuel pump failed last month so I
> replaced it with on OE unit. I've taken the throttle body off a few months
> ago to replace the hoses and seals underneath, but it was reassembled and
> working fine. I installed a set of 034 silicone hoses.  I replaced the
> noisy blower motor without removing the heater box. I replaced the one
> still original POS with a new one.
> 
> She's not taking the loss of virginity well. My tech advisor suggests the
> hiss is exhaust trying to get through clogged 20 year old  catalytic
> converters. Any other ideas welcome, or I'll see you in Sonoma.
> 
> 
> 
> Brian
> 90 90Q 20v
> 95.5 S6
> 06 TT Roadster
> Vancouver BC
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