Wierd Boost behaviour

Ben Swann benswann at verizon.net
Tue Nov 10 12:34:50 PST 2009


Suspects include N75 valve and IAT connection.

Please let us know what you find out on this one.


[Date: Wed, 4 Nov 2009 15:47:38 -0500
From: Peter Schulz <pcschulz at comcast.net>
Subject: Wierd Boost behaviour
To: 200q20V mailing list <200q20v at audifans.com>
Message-ID: <7BB15D2C-467B-4F7C-8F1B-73B3CEF2EACE at comcast.net>
Content-Type: text/plain;	charset=us-ascii;	format=flowed;	delsp=yes

Posting for a friend....

RS'2 3b (injectors., MAF, turbo, EM, Cams, MTM chip & 3bar Bosch PT), recently rebuilt,
all new sensors and BPV.

Only gets boost with partial throttle and only about 20psi, should see about 26psi.

Has performed repeated pressure tests.
Checked and reset the TPS.

I recall reading about similar issues in the past, but haven't found anything by
searching the archives on Audifans.

Any ideas?

-Peter Schulz
Chelmsford Ma, USA

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