Aux Air Valve.... Is this it??
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(In Topic #77613)

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Aux Air Valve.... Is this it??
I've read lots of posts about the aux air valve causing cold idle problems.
When started from cold my engine really wants to stall. Idles fine once warm. Have tried squezing the pipe from the air box to the thottlebody so see if the revs drop, but not 100% sure if i am sqeezing the right pipe and whether i know were the aux air valve is….

If it, then i think it is broken as the revs do not drop when the pipe is sqeezed.
Thanks
Liam
Cheers,
Liam
Liam
Posted

Local Hero

I can get a pic of it if you need it?
the pipe that goes to the airbox from the rocker (top one from that 'T' peice you've circled) is the breather pipe
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Settled In

Oh well, will go out and have another look for it before it gets dark!!
Back in a mo
Liam
Cheers,
Liam
Liam
Posted

Local Hero

I've got the same cold idle problem so probably should go check mine before it gets dark but had enough of working on it for today

Posted

Settled In

Has a pipe feeding it from the big air pipe before the throttle and an electical connection? Right behind the inlet manifold.
I can't be bothered to stand out in the cold any longer either, so its gonna have to wait til next weekend now!
Cheers

Liam
Cheers,
Liam
Liam
Posted

Local Hero

heard they're not cheap for a new one though :cry:
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Settled In

Will let you know how i get on next weekend.
Might invest in a volt meter too? So i can check a few other things too!
Cheers,
Liam
Liam
Posted

Local Hero


I've had a look on GSF's website but can't find the aux. air valve listed (probably under a different name as usual!) :cry:
Posted

Local Hero



Posted

Local Hero

Posted
Local Hero

Its not too hard to test, luckily.
Posted

Settled In

Checked my aux air valve today….
Seems to work fine….

Engine cuts out when the pipe is blocked off.
So that makes me wonder what else could be wrong. :dontknow:
Any ideas on what could be causing a very low idle when cold?
I'm gonna need some new engine mounts soon otherwise!

It idles fine once the engine is warm.
Cheers,
Liam
Cheers,
Liam
Liam
Posted
Local Hero

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