[s-cars] Help Chipping a Virgin

[Mike Miller]

Here's one I made years ago.

http://blackfoot.net/~hlm5860/Tester.html

--mike

On 10/15/2015 1:58 PM, Ned Ritchie wrote:
> Brian,
> Buy a PVC pipe "Cap".  I think the size is 2 1/2" an unusual size but available at a plumbing supply.  Sometimes Lowes has them.  With a little work with a bench grinder the outside will approximate the size as the air meter.   Drill a hole in the end and thread it for a Schrader valve.  Push the cap into the big black hose that you removed from the air meter and clamp it securely.  Then with an air compressor pressurize everything with 15 to 20 pounds.  Use a regulator and gauge. You will hear the leak with a mechanics stethoscope hose.
> Ned Ritchie
>
> -----Original Message-----
> From: S-CAR-List [mailto:s-car-list-bounces at audifans.com] On Behalf Of Brian Pleet
> Sent: Monday, October 12, 2015 9:49 PM
> To: s-car-list at audifans.com
> Subject: [s-cars] Help Chipping a Virgin
>
> 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
> _______________________________________________
> S-CAR-List mailing list
> http://audifans.com/mailman/listinfo/s-car-list
> http://www.audifans.com/kb/List_information
>
> _______________________________________________
> S-CAR-List mailing list
> http://audifans.com/mailman/listinfo/s-car-list
> http://www.audifans.com/kb/List_information