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Hard acceleration stutter
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Old 02 Dec 2011, 09:57 AM   #1 (permalink)
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Hard acceleration stutter


First time on here so firstly hello!
Any feedback to the following would be much appreciated.

I have a 98 sti version 4 that was working fine up until last week (I have owned it for about a month).
When I accelerate hard and it reaches just under 3000 revs then is starts to stutter.
The stutter frequency is not as spaced out as that in the following youtube vid but this is the closest thing i can find to show you the sort of thing I am on about.

The stutter itself is very brief but its frequency is about about twice per second (roughly).

I have been having a read through the other similar posts, and the main things that have come up so far are:

MAF sensor
Lamba sensor
Spark plugs
Coil pack
Cylinder compression - hopefully not!

I am not sure if it is relevant but the car has (since for past 6months) had varying idling speed (between 700 - 1300). It was more common when cold but is now more intermittent.

Right, enough waffle from me.

Like I say, any advice is very much appreciated!

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Old 02 Dec 2011, 10:44 AM   #2 (permalink)
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Re: Hard acceleration stutter

sound slike maf to to me, i'd get it looked at asap and try to drive it as little as possible untill checked out. Could be damaging it by driving it
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