P0172 code

[hammerhead]

I don’t think Ford would go out of their way to tell you that you need a software update unless it was safety related.
Generally, check engine light or drivability issues possibly have a service bulletin which Ford has found can sometimes be fixed by updating pcm software.
Every computer controlled system on your car can be updated. Engine, trans, hvac, awd, the list goes on.

if the app is on the phone and the vehicle trips a code Ford will message the owner —but I would think updates should be automatic the same as a home computer since the manufactures are fighting to relabel the automobile as a computer...

[hammerhead]

it's been 1.5 weeks - I spoke to some locals and have also complained about their cars running poorly after filling at the Ultramar they actually posted this of FB - I'm not suggesting they have bad fuel at Ultramar could be additives required and mandated or possible water in fuel or maybe tank - I have had issues here before when the over night delivery put the wrong fuel in the ground tanks and I filled my car with diesel instead of supper... since I've cleared the code on my truck and used a tank and a half of 94 the truck is running great and the fuel mileage has been a touch better considering the cold temps - I'm not sure if I will go back to the regular, maybe in the summer - I will continue to monitor and if the problem persists I'm sure it will throw a code - but for know I write it off as bad fuel and avoid Ultramar - two bad experiences is enough - the code tripped had a long list of possibilities form exhaust issues to fuel in the oil and many things in between including several sensors none of which I would think present 2+ years in - for now I will think it's bad fuel - Pays to drive with the radio turned off