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revs dropping on classic sti and then stalling

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Old Jun 12, 2008 | 09:20 PM
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Unhappy revs dropping on classic sti and then stalling

Every so often i come to a stop and dip the cluth the revs are falling all way to 0 then back up then it stalls . I have have checked the dump valve and there seems to be nothing wrong with it . What else could it be ? Anyone

On the standstill the idle is on 1 but keeps going up and down

The car is totally standard

Thanks

Last edited by SqeekyMclean; Jun 12, 2008 at 09:22 PM. Reason: added more info
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Old Jun 12, 2008 | 09:29 PM
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My classic uk car used to do that, was advised to change the MAF which helped but every now and again it would still do it.
I got the idle control valve looked at and it was suggested that i replaced it but as it was an intermitant thing I never got round to doing it.
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Old Jun 12, 2008 | 09:31 PM
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idle control valve or maff sensor would go idle first would get it mapped if your running any mods
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Old Jun 12, 2008 | 11:00 PM
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Try a search on here mate, this is a v common problem but I think 2 most likely have been raised - MAF or ICV. I had this and it was the MAF - repacement cured it and never had any problems after that. Advise you get it checked out as if it is MAF it can do serious engine damage. Think MY99/00 cars in particular had crap MAFs, though it may just have been the UK T2000s
dnc
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Old Jun 12, 2008 | 11:05 PM
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Evening m8 had the same problem on my classic a few months ago revs would drop then pick up again and so on but never stalled changed my o2 sensor and problem solved.
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Old Jun 13, 2008 | 12:40 AM
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thanks for input. Its never stalled on idle just when im driving the car a dipping the cluth to slow down.

Whats the correct rev the scooby should be at on idle?

Just hope it' not too expensive to put right. Will diagnostics pick it up.

Last edited by SqeekyMclean; Jun 13, 2008 at 12:47 AM. Reason: spelling
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Old Jun 13, 2008 | 12:44 AM
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Originally Posted by SqeekyMclean
thanks for input. Its never stalled on idle just when im driving the car a dipping the cluth to slow down.

Whats the correct rev the scooby should be at on dle?

Just hope it' not too expensive to put right. Will diagnostics pick it up.
thinks it about 690-700rpm with no air con on but if u look at the gauge it looks about 500 rpm
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Old Jun 13, 2008 | 01:09 PM
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Originally Posted by SqeekyMclean
Just hope it' not too expensive to put right. .
My MAF was the green label one which was £217 from Subaru about 2 years ago.

Depends on which MAF it is as I believe different years are different prices.
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Old Jun 13, 2008 | 01:15 PM
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air leak on pipe work, ICV, maf or lambda sensor
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Old Jun 13, 2008 | 01:59 PM
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There is not going to be a problem with parts is there with car being being a import and all?

Last edited by SqeekyMclean; Jun 13, 2008 at 02:52 PM.
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Old Jun 13, 2008 | 02:27 PM
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subaru wont be able to give you a price over the phone cos they have to email subaru uk so could take a day.
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Old Jun 13, 2008 | 03:03 PM
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reminds me do i need to have it remapped to run on 99ron after the drop in from japan?

or should it be fine on normal uk super stuff
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