name this valve! (RB20)

Discuss the RB20, RB25 and RB26 series engines.
apex_7
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I've been having some crazy idle problems, mainly after the car warms up. My idle is usually around 1850+rpms! I just replaced the AAC, and what I thought was the IAC. I don't know what this valve is though!?! I've messed w/ the idle screw and tryed almost everything I can think of. I'm probably going to try bypassing this valve tomorrow. Does anyone know what it is?


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Carl H
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air reglulator.stupid high idle is proly due to improperly set tps not a valve.

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Fenvy
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maybe idle air control valve stuck?

apex_7
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nope, I took it off and soaked it in brake parts cleaner and it doesn't stick at all.

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themadscientist
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pirate air, arrrr! look for some hose off the intake that might have come off letting air past the throttle at idle.

apex_7
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Carl H wrote:air reglulator.stupid high idle is proly due to improperly set tps not a valve.
not tps, checked that.

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Kansei240sx
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Something else you might want to check is your head temp sensor, those things can be fidgety and replacing one on my KA24 and my friends Z solved his idle problem. Try the MAF also just for the hell of it.

apex_7
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Kansei240sx wrote:Something else you might want to check is your head temp sensor, those things can be fidgety and replacing one on my KA24 and my friends Z solved his idle problem. Try the MAF also just for the hell of it.
head temp sensor? where is that? I think the MAF is okay, but airflow maxes out (according to afc) in 3rd gear around 6800rpms, 12.5psi. I need to get a Z32 MAF anyway, but I want to fix this idle problem before I do anything else to the car.

thanks for your responces.

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Kansei240sx
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Its right by the water pump on by the radiator hose exit.

digzsublime
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Yeah that's right!! You betta work all of the kinks out of my motor Boyeee!!


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