My xterra threw this code and now is in limp mode I changed the fuel pump alrdy and next going do the timing chain and new radiator stuff also has anyone ever came across this before in there xterra mine is a 2008 xterra s model with the 4.0 I'm it any ideas what could it be I going to replace all injectors after timing and everything I got more money for cheap parts than I do for labor any ideas ty very much glad to be part of a group I'm clif btw