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Model specific boards => Golf mk2 => Topic started by: sillygilly on 03 August 2011, 19:05

Title: MK2 8 valve engine hunting
Post by: sillygilly 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 ?

Title: Re: MK2 8 valve engine hunting
Post by: dragonfly on 03 August 2011, 19:58

Clean the ISCV and see if that improves the idle.

Title: Re: MK2 8 valve engine hunting
Post by: sillygilly on 06 August 2011, 11:05

Bit thick, what is ths ISCV ? :sick:

Title: Re: MK2 8 valve engine hunting
Post by: Wayne 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:

Title: Re: MK2 8 valve engine hunting
Post by: siddleg 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

Title: Re: MK2 8 valve engine hunting
Post by: Sam on 20 August 2011, 16:55

ISV's on ebay are £50, dont worry  :smiley:

Title: Re: MK2 8 valve engine hunting
Post by: Ktuludays 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.

Title: Re: MK2 8 valve engine hunting
Post by: weazgti on 22 August 2011, 17:39

Mk3 ones are the same and much newer, £3 up the scrapyard for mine.

Title: Re: MK2 8 valve engine hunting
Post by: russ-vdub on 24 August 2011, 13:08

^^ Great advice :afro:

Title: Re: MK2 8 valve engine hunting
Post by: russ-vdub 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!