I got an 03 mdx. One day it cut off and wouldn't restart until next day. Ran for a couple days fine then just cutoff again and hasn't started since. Starter motor cranks and there are no cel codes. No warning on dash for improper key or security. There is no spark getting to plugs. WHen it cut off it was like someone just turn the key to off but all the lights and everything else stayed on. What are my possiblities?