Hey guys I've been looking around on this forum and can't seem to find what I'm looking for. Just the other day I changed the valve cover on my 04 intrepid due to old one being cracked. Put it back together and it started right up. Went out the next day to go somewhere and now it won't start. It turns over but won't fire. I pulled P0335 and P0340. I find it hard to believe that both sensors went bad at the same time. Possible electrical issue? Any help would be nice