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hunting/ high idle

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Old 03 September 2017, 11:40 AM
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MIKE25
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Default hunting/ high idle

not sure if this is the right section to post, but im having a strange problem with my06 2.0 sti, it randomly starts hunting on idle between 1250 to 2000 rpm, and then once thats finished its idles at 1400 rpm,after a while it does carm down and idle normally, does anyone have a clue what this mite be, ive checked air mass sensor connection and breather hoese ??
Old 03 September 2017, 04:29 PM
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IainMilford
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Is just when cold? Just started? Aftermarket ecu?

Could be idle control valve
Old 03 September 2017, 06:43 PM
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MIKE25
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it doesn't do it when cold, only when warm,its got standard ecu but got a ecutek sticker on it,was told it was tinkered with to pass sva when new.

Last edited by MIKE25; 03 September 2017 at 06:44 PM.
Old 05 September 2017, 06:14 PM
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Air leak or idle control valve id say
Old 27 September 2017, 12:55 PM
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hamzi95
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i can replicate this issue, when i try to fully open my ivac and tighten everything back. the car will idle fine, as soon as i give it some beans it will hunt from like 1500-2000 and then settle to 1200!
Old 27 September 2017, 12:59 PM
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Any CELs?

Clean IACV and replace gasket.




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