Black smoke from Exhaust on 2015 Freight Cascadia

[MommaBurt]

The def light blinking red is pretty typical because of the system being disabled. only way to make it read is turn it back on or override it.

If it makes you feel any better, 9 times out of 10 people usually don't change a single map or parameter in the ecm's operating section (kinda tough to explain without saying exactly), and this is real bad without egr gas . They'll only change/block codes/things you can see in the diagnostic software so you can;t see ecu is screaming alarms any more.

Unfortunately, to make you feel worse...the few times I've seen people change the operating software (one file for free on the internet). The engine goes boom after a while from excess detonation problems.

If you want to see if the file is jacked up pm me or unilevers or call prices diesel (gearhead) to see if it is safe. Could be the file, something truck related, or something they didn't do correctly on physical section.