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Stutter or hesitation at 2200-2300 rpm at WOT.

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Old 03-23-2005, 08:31 AM
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Default Stutter or hesitation at 2200-2300 rpm at WOT.

Also a little rough at idle. Engine sounds like mmmmmmmmm nn mmmmmmmmmmm nn mmmmmmmmmmmm. Hesitation every 2-4 seconds.
I changed spark plugs and plug connectors 3 months ago. POS, wastegate solenoid valve and fuel filter changed today. Stutter and rough idle still there.
Changed back to the old spark plugs. Hesitation at 2200 rpm is gone, idle still rough.
What's the chance the new spark plugs are bad? I think it's something else that the old plugs mask.
Any ideas??
Old 03-23-2005, 08:38 AM
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what kind of plugs did you put in it?
Old 03-23-2005, 08:57 AM
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Bosch F5DPOR
Old 03-23-2005, 10:49 AM
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Clean the ISV, mine was stuck
Old 03-23-2005, 10:52 AM
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Default i had very similar symptoms. after cleaning my injectors, its gone away.

my idle was the same too. sounded like it wasn't firing on a cylinder for a split second. mine was a result of the car sitting for over a year without being started when i first bought it.

i removed my injectors and soaked them in carb cleaner for 24hrs. replaced them with a new o-ring kit from advance auto parts and my car runs fine now.
Old 03-23-2005, 10:57 AM
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MAF?
Old 03-23-2005, 11:00 AM
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that'd throw an engine check light on.
Old 03-23-2005, 03:34 PM
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Do you have a part # of this o-ring kit you bought? Thanks.
Old 03-23-2005, 08:26 PM
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fortunately ... i just went up .. told them my car ... got o-ring kit. threw out box.
Old 03-24-2005, 02:17 PM
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ISV cleaned
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