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Author Topic: revs high on idle speed unless throttle blipped  (Read 1992 times)

Offline rids

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revs high on idle speed unless throttle blipped
« on: 07 February 2014, 19:14 »
as title, (8 valve digifant) revs hang on sometimes as car goes to tickover, if i blip throttle revs fall to idle speed.
I've fitted a brand new idle stabilisation valve but it hasnt changed anything. If i blank off both hoses to valve, once car is warm it runs great.  anybody any ideas??
« Last Edit: 07 February 2014, 20:03 by rids »
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Offline gazareth

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Re: revs high on idle speed unless throttle blipped
« Reply #1 on: 07 February 2014, 20:28 »
could be your throttle cable or linkage sticking.
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Offline rids

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Re: revs high on idle speed unless throttle blipped
« Reply #2 on: 07 February 2014, 21:11 »
It's nothing as obvious as that
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Offline oakgreener

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Re: revs high on idle speed unless throttle blipped
« Reply #3 on: 08 February 2014, 15:51 »
Mine does this occasionally and has done so for some time. I've never found the reason for it so would be interested to hear any theories. I've got used to dropping the clutch slightly to bring the revs back to around 850.
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Offline rids

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Re: revs high on idle speed unless throttle blipped
« Reply #4 on: 08 February 2014, 17:36 »
Mine runs perfect with the idle stabilisation valve isolated and the hoses blanked off. My gut feeling is its an electrical fault
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Offline Gambit

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Re: revs high on idle speed unless throttle blipped
« Reply #5 on: 08 February 2014, 18:38 »
Check the throttle closed switch on the throttle body
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