invaderlude

I have a 95 S and I have a problem with my car idling high and sometimes surging. When I first start my car cold it idles at 2 like it is suppose to and when I warms up it goes down to 800. Sometimes though when I first start it, it will serge between 2 and 1500. Once I start driving and come to a stop again it will sometimes idle at 1, but lately it has been idling at 1400. While I am stopped it will fluxuate between 1200 and 1400. I have looked at all of my hoses and it doesn’t appear or sound like I have a vacuum leak.

fourthgeneration

exact same problem as me. i took off the head, put in new valves, new timing belt, and im having the same symptoms

im taking off the IM right now, and I think im gonna have to pull the head, i don't think i installed headgasket right

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1992 Prelude SI Type SH EBP VTEC BB1 SiR H23 DOHC 4th gen Type-R BB4 Milano Nordic Mist F22 JDM-spec 5th gen Type-S 4WS H22 EDM Mugen edition

invaderlude

Damn, that sux. I am going to be doing my swap in spring so I'm hoping that it isn't anything too complex.

rudeskawn

I have the same problem. I was told it could very likely be the Fast Idle Valve. So I ordered one, it should be in within a few days. I will let you guys know if it fixes my problem.

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Fast&furiuslude

this happned to me once and it was my map sensor.

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-Lewis-

Si Prelude with H22 swap
i/e/hi-flow cat/clutch/motor mounts/thermo coolent mod