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Old 01-03-2010, 05:52 PM   #1
18aspenSTi
Scooby Newbie
 
Member#: 139419
Join Date: Feb 2007
Chapter/Region: TXIC
Location: Universal City, TX
Vehicle:
2005 STi
AW

Default Only 2-3 degrees AVCS advance during log???

Recently my 05 STi has become noticeably laggier. It has a 7cm td05 20g, ewg, big TMIC, and BC 272s. I was able to hit full boost(~21 psi) in the 3300 range, now it seems to hit around 4k. The car threw the p0021 code for cam advance, so i replaced the driver's side ocv with a brand new one, but that has not cured the issue and the light comes back on after maybe 40-100 mi. of drving after being cleared. I tried logging to see if AVCS was active at all, and what I found was only 2-3 degrees of Intake VVT Advance Angle on both left and right banks. The duty cycle for both OCVs was the same, at 57%. Does anyone have any clue as to what may be causing AVCS to work, but not completely??
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