Loss of power

andyschlueter andyschlueter at 4techwork.com
Mon Apr 10 23:47:04 EDT 2006

Hey Ben,
Ya new valve. funny thing is i still pull 20 psi. i keep wondering if timing
is being pulled somehow. there is a dramatic power difference from 10-12psi.
falls off. Smells like i am running rich with the windows open and driving,
i keep wondering if my fuel pressure regulator is bad, dumping fuel after 10
psi. all the plugs look good, O2 is new and white when i pulled it. The only
hose left un touched is the upper intercooler hose and the turbo intake
hose. The oneway breather is shot, i am getting a multi sensor tommarrow. do
you know what the coolent sensor onthe back of the head does? or maybe the
altitude senor is the culprit?

Andrew W. Schlueter

'91 Audi 200tq20v Avant

www.westmotorsports.biz <http://www.westmotorsports.biz/> 



From: Ben Swann [mailto:benswann at comcast.net] 
Sent: Monday, April 10, 2006 1:33 PM
To: andyschlueter at 4techwork.com
Cc: 200q20V at audifans.com
Subject: RE: Loss of power



I'd be looking for a small leak in one of the intake hoses.


Also, if the bypass valve is remaining open, you won't be able to develop
full boost.



benswann at comcast.net

83 urq, /[][] =oooo= [][]\ alpine and Inga

'90 Coupe Quattro (==\ oooo /==) ES2 Conversion

91 200qa20v, [ =!\=oooo=/!= ] avant and sedan

[Date: Sun, 9 Apr 2006 23:38:48 -0400

From: "andyschlueter" <andyschlueter at 4techwork.com>

Subject: RE: Loss of power

To: <200q20v at audifans.com>

Message-ID: <000901c65c50$47058140$6601a8c0 at SCHLUETER>

Content-Type: text/plain;     charset="us-ascii"


I can no longer make power above 10 psi, kinda bogs down and makes a heavy

fluttering noise, rough idle too. All vaccume line have been replaced, lower

turbo hose is samco, new o2, clean isv twice now, new distributor, newer

incercooler, new vaccume line in ecu,  bpv works,  new boost gauge line,

waste gate and hose is good, manual boost controll (n75 is still connected,

zip tied up). Any thoughts or suggestions?




Andrew W. Schlueter


'91 Audi 200tq20v Avant


www.westmotorsports.biz <http://www.westmotorsports.biz/>]

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