If fuel filter is original,i would do that as a no brainer. Not saying its that,but,i would start there. Fuel pump can also do that.Mine started acting up at 2400 hours. Normal pressure is 39 psi where mine was in the 20's. Check fuel lines and in particular,the pick up line in the tank.Mine was split high in the tank and was sucking air.
Oxygen sensor will also throw the code you mentioned.Also,check to see if you have any cracks in your muffler.There were also grounding issues on earlier models. If you have a metal cased computer,its probably not grounded properly from the factory.
You going to try to fix it yourself,or are u bringing it to the dealer?