Lml po234 po299

[crankshaft-lffl]

I'm getting a po234 and po299 code which is underboost and overboost just had truck tuned trying to figure if its tuning or I need a turbo any help is appreciated

 

[scramHD]

Um. Well.......Start with where/what you did most recently. Don't come back and say "it's not the tuning"...…..not interested in hearing about the other problems your journey is about to take you on...…because if you don't already know you probably should not have done what you've already done.