Hey. So I've got an '00 trep and it has ran fine then all of the sudden it won't start and after letting it sit and trying again it does start but will just stop like the fuel was just cut off. This has happened several times now.When it is running, it runs smooth and quiet. Engine light has been on. Hooked up auto scanner and received thesecodes p0700 and p1782. Any ideas? Is this a major problem? Thanks for any help.