Thread: 2011 Sti P0172
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Old 11-06-2012, 06:09 PM   #7
Wicked Performance
Former Vendor
Member#: 265606
Join Date: Dec 2010
Chapter/Region: NESIC
Location: Manchester, NH

I would suggest having your tuner look at it and diagnose the problem, without seeing the map I cant give you solid technical advise.

I normally blame the calibration last, but its the most common cause of 172 codes. The only other possibility is a small boost leak that DOESNT manifest as a vacuum leak. Does it hit and hold boost target? Is the idle vacuum normal?
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