[s-cars] Boost cutout progress...

[djdawson2 at aol.com]

Jim,

Pinching off the line to the WG simply takes the Engine Management system out of the boost equation.  Further, it reduces the max boost you will produce.

IMO, because you've reduced the max boost level (probably making about 15-17psi max), you are not allowing boost to reach a high enough pressure for the ECU to cut the fuel.

The pro: You aren't getting boost related cutout.
The cons: 1) You aren't getting max boost. 2) The ECU is unable to protect the health of your engine if it encounters extreme/dangerous conditions, like overheat, high intake air temps, etc...

WGFV?  I'd say it's a good suspect.  However, I can't provide BTDT experience, as I've not encountered a failure in my experience.  Perhaps others can comment.

You're getting closer... good luck.

Dave

 

 

 

-----Original Message-----
From: Jim Fleischer <jim at almgt.com>
To: s-car-list <s-car-list at audifans.com>
Cc: djdawson2 <djdawson2 at aol.com>
Sent: Tue, Sep 25, 2012 11:00 am
Subject: Boost cutout progress...


Hey all,
 
Making some progress with regard to my boost issues.  To recap, clogged cats were the primary issue regarding no boost whatsoever.  Then I was experiencing stumbling/overboost/cutout on a random but continual basis.  I regapped all of the NGK plugs so they were consistent (there was some variation for sure.)  That seemed to help, but still not great.  Then, upon Dave Dawson's continued sage advice, I pinched off the wastegate hose again and WOW, I have full and consistent boost at all times!  Fully understanding I am not extracting all the power out of the car, it's nice to lay into the throttle and not be afraid the anchor is going to be thrown out the back!
 
So, I think that isolates the problem with the WGFV.  I have cleaned the connector already with electrical conductor cleaner.  Is this something that I just need to replace, or is there something else I'm not aware of?
 
Also, am I okay to be driving the car with the wastegate hose pinched for the time being?
 
Thanks guys, can't express my appreciation enough for the patience and understanding through this process!
 
Best regards,
 
Jim Fleischer
'95 urS6 avant boosting away happily!