Re: Car idles at 3000rpm!
13 January 2012, 07:02 PM
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Re: Car idles at 3000rpm!
Car was running ok... then all of a sudden loss of power, but boosting ok.
I thought it was the plugs so I changed them... still doing it. But now the car was over revving and ticking over at 2500-3000rpm.
Turns out it was the coil pack not firing on one, so I've changed the coil pack and the car drives beautifully again, BUT still ticks over at 3000rpm.
There's no air leaks that I can find, all vacuum pipes on the manifold seem fine... I've swapped over the map sensor to try and eliminate that, still doing it.
Any ideas??
I thought it was the plugs so I changed them... still doing it. But now the car was over revving and ticking over at 2500-3000rpm.
Turns out it was the coil pack not firing on one, so I've changed the coil pack and the car drives beautifully again, BUT still ticks over at 3000rpm.
There's no air leaks that I can find, all vacuum pipes on the manifold seem fine... I've swapped over the map sensor to try and eliminate that, still doing it.
Any ideas??
13 January 2012, 07:03 PM
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The 'check engine' light is also on sorry forgot to say.
It all seems to have happened when I changed the plugs, but I didnt disconnect or touch anything else at that time.
I'm a bit stumped
It all seems to have happened when I changed the plugs, but I didnt disconnect or touch anything else at that time.
I'm a bit stumped
13 January 2012, 07:17 PM
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I'm gonna go down to a friends garage 2moro morning and I'm hoping his machine can read my fault codes...
Its a '99 STi.
ps: also forgot to say I've got a Simtek so no MAF.
Its a '99 STi.
ps: also forgot to say I've got a Simtek so no MAF.
13 January 2012, 07:18 PM
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13 January 2012, 07:31 PM
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mines done the same after sitting a few weeks,turns out the stepper motor was sticky on the idle control valve,just a case of removing it and giving it a soak in some wd/40,easy cheep fix.oh and dont remove when engine is hot as its water cooled.
13 January 2012, 07:46 PM
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I'm gettin the diagnostic done free 2moro morning and he's only in Barnet on the way down to my dads (Igott go do sum work on my bro's car down there).
I got PFR7B's in there, they're not the wrong plugs you slag! lol
I got PFR7B's in there, they're not the wrong plugs you slag! lol
13 January 2012, 07:47 PM
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my car has been off the road 2months... could be the same jobbie?
any pics of the idle control valve? so I dont go removing the wrong thing for a DW40 bath, lol
13 January 2012, 07:56 PM
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Sounds like icv stuck.
Not sure on classic but on newage make sure you change gasket.
Screw heads will be goosed too. So best bet is get hold of some m5x20mm (i think from memory) hex head screws.
Steve
Not sure on classic but on newage make sure you change gasket.
Screw heads will be goosed too. So best bet is get hold of some m5x20mm (i think from memory) hex head screws.
Steve
13 January 2012, 07:58 PM
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Yup. Clean the idle valve is the first step. Mine sticks if i leave the car sitting a while. Mines a little different to your so cant help you with location. Should easily find it with a google search
13 January 2012, 08:12 PM
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I hope its as simple as the idle control valve... just weird how it was fine up til changing the plugs then straight away, blur!
Ok I'll do that first (and look out for hex screws as a give away for its location
And yes Lee, I cant disagree... I am a man-wh0re lol
Ok I'll do that first (and look out for hex screws as a give away for its location
And yes Lee, I cant disagree... I am a man-wh0re lol
13 January 2012, 08:32 PM
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13 January 2012, 08:41 PM
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your idle control valve is easy to take off and clean you wont need any gaskets just make sure the rubber o ring is ok and goes back in,have you tried spraying carb/brake cleaner on the vacuum pipes and around the manifold? sounds like an air leak could be the gasket on the manifold?
13 January 2012, 08:44 PM
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yes it will alter it as the icv is used to allow air into the system while the buttefly(throttle) is closed. From what youve just said r.e. Anti lag. Im convinced its the icv at fault. My anti lag behaves the same when mine sticks.
13 January 2012, 08:47 PM
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your idle control valve is easy to take off and clean you wont need any gaskets just make sure the rubber o ring is ok and goes back in,have you tried spraying carb/brake cleaner on the vacuum pipes and around the manifold? sounds like an air leak could be the gasket on the manifold?
I did think it could be an air leak not that easy to spot so was gonna try the brake cleaner trick 2moro
13 January 2012, 08:48 PM
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13 January 2012, 08:55 PM
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ok if you look at the engine bay at the center of the manifold just above to the right youl see a silver round jobbie with 2 screws take it off and squirt it to death
13 January 2012, 08:58 PM
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I'll hit it with more brake cleaner than its ever seen! 
In a way havin the rev's not dropping below 3000rpm is great when you're racing. You're always on peek rev's for max boost
Will make a mental note if and when I ever do a track day (a worth while map to have for that instance)
In a way havin the rev's not dropping below 3000rpm is great when you're racing. You're always on peek rev's for max boost
Will make a mental note if and when I ever do a track day (a worth while map to have for that instance)
13 January 2012, 09:04 PM
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lol ive just had a problem like yours and it made me not even want to drive it everytime i stopped at the lights it sounded like i was ready to launch,good luck m8
13 January 2012, 09:24 PM
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Yeah I feel a right tw@t when I pull up at the lights, ppl look over like wtf is wrong with you, are you tryin to egg me on for a race? lol
So did you cure your problem the same way by cleaning the ICV?