I have a 99 Eurovan VR6 that won't start when it's been driven for a while. It doesn't stall or quit but when I turn it off and let it sit for a few minutes it won't fire up. If I let it cool down for a while it starts right up. The ODBII code reads P0322 but I'm not sure what that means (it's not in my manual). Any help is greatly appreciated! Cheers.