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Old 01-05-2003, 08:59 PM   #1
Scooby Newbie
Member#: 30160
Join Date: Nov 2002
Location: l.i n.y
9900 2.5rs

Default the hesitation problem???

i here alot of people complain about the hesitation and bogging at 4k but never understood until today. my car started the nasty hesitation thing. i think the car needs a flu shot or something? well juat wanted to share my pain
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Old 01-10-2003, 03:59 AM   #2
ImprezaRS dot com
over boosted again
Member#: 1458
Join Date: May 2000
Chapter/Region: RMIC
Location: Colorado Springs CO USA
2017 WRX Limited
2015 Forester XT, Tribeca


Some people think that it is the learned fuel trim causing it, since an ecu reset often helps for a while.

Supporting that is the fact that the ProECM chip , which disables long term fuel trim, seems to fix this problem.

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