I would like to use this Predator to change the gear ratio in my 2005 Grand Marquis since I changed the gears. I'm not really looking to do other modding to this vehicle. I connected the Predator to the GM, it returns a message "vehicle not in database". (ofcourse, this unit is for mustang) and gives PCM code FCCN5B7.
Is this possible to do?
Ps: Mustang got an engine swap, so the Predator is no longer applicable. I got an InTune for it.
