[makaio]

I'm having aproblem with my car not idiling when first started and cold. It stumbles and will not stay running unless I keep my foot on the gas. The kicker is, if I do this for 5 minutes or so, then turn the car off and let it sit for another 4-5 minutes, when I start it back up, it idles like a champ.

I believe it is either the warm-up regulator or the aux air valve. I know what to look for on the aux air valve, check when cold. But how do i remove it, with out messing anything else up?

If it is not the aux air valve, and is indeed the WUR, is it just take the old out and put a new one in? Or will I need to adjust the mixture settings after install?

I have read the Pelican article on making my WUR adjustable, but I don't think my skill level is quite high enough.

The car is a 78 911 SC.

Thanks,