Step one: become disgusted with the amount of overboost codes you have popped when towing in fairly innocuous situations when you're not even half in the throttle.
Step two: become even further disgusted with the subsequent performance when it starts to defuel and you've got to slow down going over the pass.
Step three: $26.95 at o'reilly's for basic filter and CRC MAF cleaner
Step four: 15 min w/ Sophie helping to pull and replace the filter, clean the MAF and reinstall everything.
Step five: Enjoy a victory bourbon as you realize you've killed two birds with one stone as the white hazy smoke you associated with failing injectors is now gone as well as the dirty filter and MAF.
Lesson learned: changing filters regularly and cleaning sensitive electrical components might be more important on the duramax than they were on my old Beretta...