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Old 11-15-2012, 03:54 AM   #6
Scooby Newbie
Member#: 333798
Join Date: Sep 2012
Chapter/Region: BAIC
Location: Bay Area, CA
2005 WRX


The AP live data monitor list I look at has 'boost' and then 'boost target' right under it, TD boost is further down the list. I'll take your word that -8 (16 inHG) is the correct reading at idle but I previously assumed that the AP's boost reading should match its boost target reading at specific rpms/throttle.

The boost has fluctuated with stage 2, it just didn't happen when I took the above datalog. I'm not sure yet what conditions induce the fluctuation; I'm pretty sure it does it in hot and cold weather.

I'll have some time to mess with this tomorrow, will do as you advised then report back
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