Trucks running lean
The truck threw a code today on the way home from a cruz. When I got home I checked the code with a scanner and it said truck too lean. I checked the freeze frame and I was going 14mph 16.9 load 185 degree coolant. 1068 RPMs I dont have a breather cap, Checked for vacume leaks, I dunno what else t could be. Faulty o2 sensor? Any help is appreiated



Fuel filter has about 1,000 miles on it. Mods are 6# lower, e-fan, R pump, cold air<--might be the problem hehe...boost bypass..NGK TR6.