Check codes. No codes stored koeo, no codes koer. Test drove monitoring fpr actual and desired and no issues were seen. Checked base fuel pressure and found that it did not drop below 5psi while driving. Removed air filter and inspected for water intrusion and no issues were found. Dpf soot load shows to be in spec and no regeneration needed. Replaced fuel filters and checked fuel quality. Allowed fuel filter to set over night and found no crystals in fuel. Found some light metal debris in the fuel filter cap. Removed the fuel metering valve from the high pressure pump and did not see any excessive metal contamination in the screen. When the vehicle gets under a heavy load there is a power loss and engine will surge. Loaded up engine and checked charge air cooler system for leaks with soapy water. Verified that air intake hose was not collapsing under load. Swapped in known good maf sensor. Performed 2 regen and soot percentage is at 0% Have not disconnected exhaust at turbo for test drive but did disconnect it at bottom of down pipe with no changes. Has new turbo. Cac has been removed and inspected for internal issues. Im leaning towards some form of contamination inside of the injectors or a frp sensor that is lying at higher psi but I know that this is a long shot.
