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Weird surge when coming to a stop

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DECODER22

DECODER22

Supporting VIP
325
9
Jul 20, 2004
Janesville, Wisconsin
I am trying to figure out what this could be when i come up to a stoplight or stop sign at 0%throttle it surges for a few seconds then idles fine it does this anytime i am driving and let off the throttle there are no boost leaks and i have a new ISC/IAC im thinking maybe fiav? or something to do with my tune/cams the cams are 272/264 HKS also using a greddy type-s vented bov set almost to full hard on the spring i added a log to show when it does it
 

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