Author Topic: Fluctuating idle speed  (Read 1794 times)

Offline trizza

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Fluctuating idle speed
« on: 10 February 2011, 21:56 »
Can you help?  The idle on my my Mark v GTI DSG keeps going up to about 1300 then down to 800... Could this be a PCV issue? All help appreciated.

Offline Hurdy

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Re: Fluctuating idle speed
« Reply #1 on: 10 February 2011, 23:52 »
Sounds like it could be either that or one of the coilpacks. :smiley:
Seat Leon Cupra Black 290 DSG

Offline sprout99

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Re: Fluctuating idle speed
« Reply #2 on: 11 February 2011, 07:45 »
Can you help?  The idle on my my Mark v GTI DSG keeps going up to about 1300 then down to 800... Could this be a PCV issue? All help appreciated.

yes or coilpack
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V50 D5 Sportwagon

Offline pluslyn

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Re: Fluctuating idle speed
« Reply #3 on: 15 February 2011, 14:26 »
Just a thought.

Make sure that you have no inlet manifold  leaks, eg Air filter box, pipe work etc.

Also check Air Filter is seated correctly & Clean.

Offline Saint Steve

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Re: Fluctuating idle speed
« Reply #4 on: 17 February 2011, 07:48 »
Could be a failing PVC, as it is a weak spot, and will cause erratic idle if faulty.