FiTech EFI system
I also experience starting and dying after a second only when it's really hot. If I'm driving it, and then pull into a store for a minute. And then get back in it, it will start and then die. But if it's cold, it will start and run no problems. I was thinking it might be heat related, and thus related to the FCC mounted in the really hot engine compartment and vaporizing the fuel in the canister.