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Author: Subject: Idle Issue
wrxseeker

posted on 13/7/15 at 01:18 PM Reply With Quote
Idle Issue

My car is fitted with a Sierra 2.0 8V DOHC with the stock engine management and injection.

Recently when starting from cold the idle has been going to around 1800rpm before dropping back down - if you then blip the throttle, the idle sticks again before dropping.

This carries on until the engine is warm and the ignition has been swiched off once - it then idles perfectly as it always did.

If you disconnect the ISCV wire when its doing the high rev thing it idles at normal idle even when cold.

I think the ISCV is working ok but something is telling it to hold the revs high - any ideas what is what ?

I think it started doing it after fitting a new alterantor belt but cant be sure exactly when it started.

Thanks

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BaileyPerformance

posted on 13/7/15 at 01:21 PM Reply With Quote
Check the TPS is working correctly.
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Dingz

posted on 13/7/15 at 01:27 PM Reply With Quote
Take the Idle control valve off and give it a good clean out with carb cleaner or similar.





Phoned the local ramblers club today, but the bloke who answered just
went on and on.

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big_wasa

posted on 13/7/15 at 01:30 PM Reply With Quote
As above, I'd should stall dead with out it connected.
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