Chris_87
Member
Registered: 3rd Jan 06
Location: Darlington
User status: Offline
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Hi all.
I've got a problem with my 1.4 16v corsa engine, When I'm driving or just idling my car just revs to between 2/3 rpm and then sometimes it will drop back to normal then rev itself back up to 2/3rpm or it will just stay there constantly and sometimes when it does this the temp gauge goes up to three quarters ? I took the top of the water bottle off to check that and it was was boilin hot and bubbling ( tho it was hot today ).
Cheers Chris 
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Rob B
Member
Registered: 8th Jan 04
Location: Area Motorsport Drives: Race EP3
User status: Offline
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it would be boiling hot anyway Chris if you had been driving around for a bit, well not boiling hot but certainly bubbling because of the pressure i think, the problem its self sounds like either the Idle control valve, or the throttle position sensor, there both on the throttle body part them selves its a pain to get too so i would replace them both at the same time, there not to expensive.
Any sign of the EML light ?
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vaux-tech
Member
Registered: 28th May 06
Location: Preston, Lancs. Drives: Astra SRI turbo.
User status: Offline
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ther a bastard!!!!
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micky.allan
Member
Registered: 7th May 06
Location: boston/lincs
User status: Offline
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sounds to me like an air leak. i had the same prob on a 1.4 16v the little rubber pipe between the inlet manifold and the throtel bitterfly had 3 splits it it. changed that and it sorted it
mick
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chrisarmes
Member
Registered: 23rd Apr 06
Location: heanor, derbyshire
User status: Offline
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mine still revs up a bt like that 2! not got round 2 changing the ivc or tps yet. but i do remember the otha day i thought i heard an air leak on mine, so i will investigate!
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Chris_87
Member
Registered: 3rd Jan 06
Location: Darlington
User status: Offline
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Right well I've checked that little pipe and was broke and I changed it but still no luck. Rewired what looked to be a loose sensor wire, still no luck. So i'm guessin it has to be the ICV. 
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micky.allan
Member
Registered: 7th May 06
Location: boston/lincs
User status: Offline
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i would still advise cheaking for other air leaks.. as this costs nothing it mayby worth spraying wd40 around the inlet gaskit as this forms a tempory seal (for a few seconds) to show you where the fault is.
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Chris_87
Member
Registered: 3rd Jan 06
Location: Darlington
User status: Offline
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wheres the coolant temp sensor ? and i will try spraying it with wd40 tomorrow thanks micky does anyone know what the idle control valve looks like and where it is. As I couldn't find it at all today.
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