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Cold Start Valve - Is This It?

Munkyb0y

By Munkyb0y,
in General Maintenance

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Munkyb0y Grand Master

Munkyb0y

Posted
Posted (edited)

On the series 1 rb25det. I'm looking for the cold start valve, or whatever its called.

The reason is that the first start of the day always falls short of 1krpm, then drops for a couple of seconds till it stalls. The slightest touch on the accelerator brings it to its normal 1200rpm idle.

Any other start of the day is fine. Ive cleaned the AAC valve, but it made no difference. My idle was stable anyway.

I'm guessing this must be the culprit.

So, is this what i'm looking for? The hose you see connected to it from the right comes from the bottom of the AAC valve.

It's located under the forward side of the intake manifold. And how the hell do you get the fkr out?

post-29392-1250657050_thumb.jpg post-29392-1250657060_thumb.jpg

Edited by Munkyb0y
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https://www.sau.com.au/forums/topic/284097-cold-start-valve-is-this-it/
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mad082 Grand Master

mad082

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Posted

yes that is it. it will be open different amounts at different temps. at 20 degrees it should be open half way. over 60 degrees it should be fully shut.

if you pull it out and connect it up to your battery it should slowly open within a few minutes.

payback21 Community Regular

payback21

Posted
Posted

Kewl, i shall try this on the drift pig. It may solve the same problem that im having with it at the moment. It also doesnt like cold starts and is a pig to get going when dead cold.

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