Okay im lost. Coming home from dinner tonight on my economy tune truck stopped shifting. Check engine lite came on so i pulled over and checked codes with my edge insite. Got a P0700 and i think it was P0600. I know one code was the P0700 all i can remember about the other code was glow plug module something. Did replace glow plug module last spring. I turned the truck off and cleared codes and it drove fine from there on with no more lite. Wtf caused it? Did it go into Limp mode? Any advice or help would be great.