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R32 Gtr Idling Issues

SiR_RB

By SiR_RB,
in Engines & Forced Induction

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SiR_RB Grand Master

SiR_RB

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Hey guys, lately my car started to "hunt" at hot idle, I suspected the stock paper intake gaskets were the problem so I changed them all to HKS metal items,

Still did it abit so I wound the screw out of the AAC valve and all seemed much better, then today when I did a cold start it only reved to 1100ish when first cold, then goes to 1000at hot idle? Used to idle higher then slowly drop to 1000rpm

Then I went to start the car after it sat for about 30mins or so and revs were very low hovering around 700rpm and needed to tap the throttle to bring it up, then it drops again, seems like its like this until it all gets to operating temp....weird

So far took aac valve out and cleaned it

Replaced intake gaskets with HKS metal items

Don't have any problems with it idling high at all, never have

Any suggestions?

Thanks

Edited by SiR_RB
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https://www.sau.com.au/forums/topic/411277-r32-gtr-idling-issues/
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SiR_RB Grand Master

SiR_RB

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I've had the exact same issue, found one of the hoses from the air chamber up to the balance tube was split. As above smoke test will confirm where yours is

Hope it's not that cos I ain't pulling my plenum off again !! Il try manage to squeeze/dislocate my hand to reach under there lol

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