Getting codes after installing studs,oil cooler,egr delete
I thought i was done but here is whats going on. I recently had a shop install arp studs,new oil cooler,egr delete(welded the ends),new stc fitting,updated drain tube,etc. I have a diablosport tuner set at extreme. i am noticing that the boost is going all the way up to sub 30 #'s but the truck feels like its lacking power. There was a time when i had no boost on the highway and a ton of black smoke but that only happened once. I have an edge cs. It gives me two codes: p0299 and p2290. One is turbo underboost and the other is injection control pressure. I do not know what oil the mechanic put in after he did the work. Do you think its oil related. I had rotella t6 before and i think he put in regular dino oil as part of the package price. What do you guys think? I am taking it back to him but i wanted your opinions. Thank you.