No Boost Condition - Only Getting 1.0 Bar: 2011.11.12 Update

[PeterBergin at aol.com]

When I used to pressure test mine, the dip stick would shoot out!   First 
time was pretty startling.  Happened at 19psi, I normally slowly  build 
pressure to 15 psi for leak testing.  
 
What psi did you test to?
 
Pete
 
 
In a message dated 11/12/2011 7:40:07 P.M. Central Standard Time,  
pl510er at clear.net writes:

Following up on my last email, it appears the 200Q20V passed the  boost leak
test.
I can safely tell you this because when I pulled a dip  stick, I heard a 
good
pressure
release.  I haven't had a chance to  check the line pressure, but will do
that tomorrow.

Assuming I can  confirm the preliminary result tomorrow, I bet the source of
the  problem
could be electronic, not mechanical although I still could be  wrong.  Now, 
I
am starting
to really enjoy this  troubleshooting.

At this point, all I can tell you for sure is the  fault code 4411 is
present.
Do you know for sure if this is  related?   I am suspecting it isn't.     
Shin


**************************************
Date: Sat, 5 Nov  2011 17:09:09 -0700
From: "Shin Hoshikawa" <pl510er at clear.net>
To:  <200q20v at audifans.com>
Subject: No Boost Condition - Only Getting 1.0  Bar
Message-ID:  <FHENJIPJAJAMOHDNMHOPMECCCEAA.pl510er at clear.net>
Content-Type:  text/plain;    charset="us-ascii"

Well, I managed to pull the  fault code today for 4411, which appears to
indicate a
faulty fuel  injector (or its circuit) for the No. 1 cylinder. Wonder if one
bad  injector
or its circuit makes ECU to keep the boost to 1.0 maximum?   Not so sure
about it.

Come to think of it, when I still owned this  car in early 2010, it stalled
on me a
couple of times during a very  light throttle or coasting.  That could be
caused by
a faulty No. 1  cylinder injector, but I didn't have any problem with turbo
boost  then.
So, the next step is to make a home-made boost leak  tester.   Stay  tuned.
Shin

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