I have an 05 F150 lariat w/5.4. Got in truck today and the edge screen displayed I was running in stock mode which I know I always run in level 2 and I know I did not change it back to stock. So I figured I would put it back in level 2 as soon as I did the fail safe light on the truck came on along with the check engine light. Returned edge back to stock and truck is still running in fail safe mode. Can anyone help me please??? Any information or ideas are much appreciated! Thanks!

 

This happened to me while out wheeling in the snow. no check engine light, just the Engine Failsafe Mode on the trucks readout..... I was in low range, running e85 (in a flex fuel truck) in 21 degree weather... I was into it pretty hard.... I shut it off, turned it back on, and everything is gone..... I am going to try to pull the codes....

on edit, it threw a P061.... The edge does not know the description.... anyone?

 

p0061 - HO2S Heater Resistance (Bank 2, Sensor 3)

Heater current requirements too low or high in the heated oxygen sensor (ho2s) heater control circuit (bank2, sensor 3)

vpwr circuit open
ho2s heater circuit open
ho2s heater circuit short in the harness
damaged ho2s heater


looks like one of the sensors/connectors is loose or broken

 

Thanks! I will look into it...!!! Can I ask where you found that and if it is accesable by the public?

 

You probably screwed something up trying to fix it without calling Edge. I'd call them today and see what was going on.

Chalk another Edge problem up to user error....