[Proviron]

A couple turbo related codes there

P226B is boost pressure too high
P226C is actuator not closing fully
U010C is lost communication to vgt actuator
P003A another turbo/actuator code
P2BAC is an information code

P1507 is crankcase pressure too high - change crankcase filter out should clear it

P24A5 is egr cooler bypass bank 1 control stuck
Potentially sooted up or can be caused if recently ran truck without air filter on

From the sounds of the codes it's just typical wear and tear from an emissons intact Truck. I'd recommend him getting an egr cleaning, replacing the crankcase filter and getting that turbo diagnosed

Potentially that turbo is toast or could just be badly sooted up in the vanes

 

[Proviron]

Thats what I was thinking. Clean the egr. Diagnose the turbo. The ccv is easy. There was also a Nox code. Probably the sensor.

What is the best stuff to use to clean the turbo if the exhaust side is gummed up? Acetone? Something to soak the exhaust side in.

Yeah that p2bac is P2BAC-NOx EXCEEDENCE - (DEACTIVATION OF EGR) which could be leading to the egr just packed full of soot not making it operate as intended or a simple nox sensor

As for the actuator I've heard that just tapping the stuck mechanism with a brass hammer until it moves freely is good, then working the lever until it moves freely through the range of motion.

Just make sure to drain the coolant before removing the vgt servo or you can risk flooding it with coolant which will ruin it