Understanding BPV Flutter - Page 6 - Subaru WRX Forum
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#76 Old 10-17-2013, 08:49 PM
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I can almost guarantee that when you are resetting the ECU and all is well..... the ECU is adjusting for fuel trims...

It WILL find it's way back to "normal".

Tuning issue.
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#77 Old 10-17-2013, 09:40 PM
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Day 2. Took a 1.5h ride today after work to go pick up a friend and still no flutter or CEL.




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#78 Old 10-18-2013, 03:54 PM
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I think the CEL was related to the hose in the back and not whatever's going on with the fluttering sound. The ECU resetting it makes me think wastegate as the ECU adjusts settings for that and doesn't really have much to do with the BPV.
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#79 Old 10-18-2013, 04:17 PM
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I haven't checked the hoses yet due to the fact I gotta go in through the spare compartment and remove a metal plate to get to the charcoal canister, but I plan to get in there this weekend and inspect things.


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