hesitation at 4-5k rpm - Page 2 - Subaru WRX Forum
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#16 Old 11-06-2008, 01:45 AM
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Hmmmm That Would Make Sense. I Have Had Mis Fires In A Couple Diferent Cylinders. I Cleared The Codes And It Happened Again And I Changed The Plugs And It Happened Once Sense But I Have About 2-3k Miles On The Plugs Now And I Haven't Had A Misfire But The Bogging Still Happens But Only At Like 1/2-3/4 Throttle. When I'm At Full Throttle It Dosn't Happen.

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#17 Old 11-06-2008, 08:55 AM
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#18 Old 11-06-2008, 10:55 AM
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i had something similiar in my older 2.5rs, probably not the same issue but it was a poor fuel filter
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#19 Old 11-06-2008, 10:07 PM
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sorry mosc!

the fuel filter was replaced about 8 thousand miles ago so i think that should be ok but i think i'll check it and make sure as we have found alot of crap in fuel filters in the last year when they weren't that old.

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#20 Old 12-20-2008, 08:12 AM
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I had something similar happen. At exactly 4k the car would lose serious power and then at 5k it would surge forward. It was really annoying and I thought something was wrong. The next tank of gas I went to a different station and the problem went away.

Maybe try a different gas station if you're always filling up at the same place.
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#21 Old 12-23-2008, 12:19 AM
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no it's just the engine management.

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