P0401: Exhaust Gas Recirculation Flow Insufficient Detected

EGR Valve Position does not match desired, limits based on engine speed/load.


It appears your EGR valve is sticking, the EGR valve position sensor is bad or the EP sensor is bad.

A/M air filters tend to make FMC & dealers void your engine warranty. The K&N system is probably the worst A/M air filter you could have chosen for the 6.0.