Cold Start Valve - Is This It?

[Munkyb0y]

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?

Edited August 19, 2009 by Munkyb0y

[SteveL]

Yes, that's it. It will be bolted (two bolts) to the coolant transfer pipe that connects near the thermostat housing. There will also be an electrical connection.

[mad082]

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]

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.

[mosquitocoils]

Any tips on how to get it out?

[Munkyb0y]

yes, tips on getting it out would be good.

i havent tried yet, but its an absolute b1tch of a spot.

[mad082]

get someone with small hands to do it.

just don't let justin do it or he will probably try to remove the fuel filter or a radiator hose or something else located in a different location, LOL

[Munkyb0y]

or maybe he will FILM THE FRONT WHEEL INSTEAD OF THE REAR WHEEL DURING A TYRE MELTING SMOKE SHOW!!!