I had a 2012 Gt that would not set the last 2 readiness monitors, no matter what I did. It appears my 2014 GT is just as stubborn. I can get everything to ready except the O2s and HTR(which I think are the O2 heaters) Exhaust is stock except for axle back mufflers.
Does anyone know the exact drive cycle for set O2s and HTR? Is there anything I can change in the tune to get it to force to ready? I've read some posts that you can set some DTCs to N/A which will take it out of the readiness monitor list. Any truth to this?