200 20V Running issues/ Code
brogers at terrix.com
Tue Sep 11 12:14:00 EDT 2007
I would double check to make sure the vacuum lines are routed properly.
If so next I would swap in a known good ECU - see what happens.
From: 200q20v-bounces at audifans.com [mailto:200q20v-bounces at audifans.com]
On Behalf Of Tony Hoffman
Sent: Tuesday, September 11, 2007 5:42 AM
To: 200q20v at audifans.com
Subject: 200 20V Running issues/ Code
Ok guys, I've run across a stumper.
I'm working on a friends 200 20V Avant. He bought it with a running
problem, namely whenever on boost it would start to miss/buck. He had a
friend of his pull the line off the wastegate, and it was "good" for
about a month. Now, it runs pretty poorly all the time, to the point of
dying on occasion.
So, I checked the cam timing, spot on. Checked for boost leaks, can't
find any. The code that comes up is 2224. Here is the description,
courtesy of SJM autotechnic: "Maximum Charge Pressure Exceeded, Intake
air leak after turbocharger, ECU Vacuum/pressure line has leak between
intake manifold Waste gate or pressure hose, Waste Gate Solenoid/hose
problem, ECU pressure sensor malfunction
Symptom: Misfire during wide open throttle, boost pressure too high"
The symptom is exactly what I'm experiencing. I pulled the line going to
the ECU, and I have good vacuum and boost present there. What are the
chances of the internal boost sensor in the ECU going bad? Anybody have
any other ideas?
Stumped in Oklahoma,
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