Thread: P0021 code??
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Old 04-04-2017, 09:58 AM   #32
Scooby Newbie
Member#: 432274
Join Date: Oct 2015
Chapter/Region: MWSOC
Location: Kalamazoo MI
2011 Forester


Originally Posted by sp3nny View Post
Hmm that is frustrating. It's my understanding that the AVCS gears should read the same (or very close) to each other, so there must still be some kind of issue there. Have you only done the 10 mins drive? Codes can stay in the system for a bit. I'd reset ECU if you haven't and drive it a bit more just to make sure, though it sounds like you have narrowed it done to very specific parameters. When my left AVCS was sticking, I found i rly noticed it when taking off from a stop. The car would hesitate and not want to rev properly.

The ECU was reset after the cam was put in but I will try to reset it again and see what happens. It's really random when the left great does stick and will be normal at other times.

When you swapped OCV solenoids, the problem remained with the left side and didn't switch the low reading to the right?
Yes once I swapped sides it stayed on the left.
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