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Author Topic: MK2 8 valve engine hunting  (Read 1864 times)

Offline sillygilly

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MK2 8 valve engine hunting
« on: 03 August 2011, 19:05 »
Hi guys, i have a 1991 mk2 gti and for some reason the engine starts to hunt when it is idol. It doesnt do it all the time .
Anyone know how i can fix this ?
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Offline dragonfly

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Re: MK2 8 valve engine hunting
« Reply #1 on: 03 August 2011, 19:58 »
Clean the ISCV and see if that improves the idle.
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Offline sillygilly

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Re: MK2 8 valve engine hunting
« Reply #2 on: 06 August 2011, 11:05 »
Bit thick, what is ths ISCV ? :sick:
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Offline Wayne

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Re: MK2 8 valve engine hunting
« Reply #3 on: 06 August 2011, 11:22 »
Quote from: sillygilly on 06 August 2011, 11:05
Bit thick, what is ths ISCV ? :sick:

Idle speed control valve  :smiley:
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Offline siddleg

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Re: MK2 8 valve engine hunting
« Reply #4 on: 20 August 2011, 16:49 »
lets hope you dont need a new one there £200

try cleaning it with carb cleaner that sorted mine
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Offline Sam

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Re: MK2 8 valve engine hunting
« Reply #5 on: 20 August 2011, 16:55 »
ISV's on ebay are £50, dont worry  :smiley:
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The entire world is a Money Pit, you just have to pick yours.

Offline Ktuludays

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Re: MK2 8 valve engine hunting
« Reply #6 on: 21 August 2011, 19:29 »
mate, if you aren't sure what it is, it is a cylindrical silver thing of top of your rocker cover with two pipes and a plug on it.

normally it is held in place by a rubber type thing on a bracket.
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Offline weazgti

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Re: MK2 8 valve engine hunting
« Reply #7 on: 22 August 2011, 17:39 »
Mk3 ones are the same and much newer, £3 up the scrapyard for mine.
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Offline russ-vdub

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Re: MK2 8 valve engine hunting
« Reply #8 on: 24 August 2011, 13:08 »
^^ Great advice :afro:
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Offline russ-vdub

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Re: MK2 8 valve engine hunting
« Reply #9 on: 24 August 2011, 13:09 »
But yeh dont just assume its that, hunting can be down to lots of little things. Air leaks being one, dodgy full throttle switch etc etc.. the list goes onnnn!
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