re: 2000 Lincoln Navigator running too lean
I have a 2000 lincoln navigator that is running rough at idle speed. The check engine light is on and is showing too lean a mixture on both banks. I recently replaced all 8 injectors, fuel filter, pcv, and upper plenum gaskets, still no difference. I tried swapping maf sensor with another navigator i have that made no difference either. I checked and replaced an elbow that was bad at tb that connects to the pcv tubing, still nothing. Anyone have any suggestions, i am going crazy on this one.