Chip PT Pressure Transducer Question ECU

[Ben Swann]

The recalibrated PT will show less than actual boost.   You need to plumb a guage in - tee in just prior to the ECU port.

Ben

[Date: Tue, 9 Nov 2004 23:20:18 EST
From: SuffolkD at aol.com
Subject: Re: Chip PT Pressure Transducer Question ECU
To: 200q20v at audifans.com, quattro at audifans.com
Message-ID: <111.3cc0a7d5.2ec2f102 at aol.com>
Content-Type: text/plain; charset="US-ASCII"

Minhea chip question.

The ECU now has a modified PT.
So when the car had the stock PT setting the dash showed 1.8 bar at "full" 
boost.

Mine had leaks and issues which a few of us focused on and fixed/repaired.
Now the Chipped ECU only reads 1.6 max no matter what (it was 1.3-1.5 in the 
past)
Yes 93 octane fuel used........

Q:  WHEN the PT is "recalibrated" does the dash display read lower because of 
the mod/recalibration?
So 1.6 = 1.8/9 stock?

Also, where would the best place to T into the vacuum lines for a VDO boost 
gauge?
By the ECU not optimum?

I've been told chipped cars read 0.9 at start up, but my old 10V avant showed 
0.9 non"chipped"..........even 0.1 under vacuum deceleration.
TIA - Scott by BOSTON]