I have had this happen with several different types of plugs over the years.I am familliar with the champions though and dont use them in my cars(or any that I work on)Auto lites or NGK are the ones I stick with
try spraying some starting fluid if it wants to start you"ll know it's a fuel problem maybe fuel pressure or a coolant temp sensor giving the wrong measurement like telling the comp the engine is warm when it's really cold. it happens!
yeah i tried the starter fluid and nothing i had the injectors/pump checked and they were working fine. this van is just a PITA and has way too much body damage to be worth anything so its off to the junkyard....plus with it gone i'll have room to get another car