Hi All,

I just installed a new idle control valve on my 90 Vanagon to cure a cold
stalling problem, it handled that problem perfectly!  Now something new has
popped up, it idles fine until I turn on the A/C, then it immediately climbs
to 2000 rpm.  If I turn off the A/C it drops to its normal idle at just
below 1000 rpm.  Also, upon startup it hovers at 2000 rpm for a brief moment
before it drops down to its normal idle.  Any ideas or suggestions?

Hans