Heads or not

[jonesy_11950]

I have done new oil/egr cooler, ELC cat coolant with filter, new delta's 12 compared to 30, coolant pressure doesnt seem to go over 5 psi (new gauge on it's way), seems to be venting from degas cap with coolant smell, bubbles in degas bottle that seem to increase with high idle. OEM reman turbo just done. Coolant CO2 tester seems to turn a slight greenish color. Truck is an 04 F550 6.0l. Should I get the PCM/FICM updated flash? Codes per edge insight P0263, Po480, Po720, P2262. Does seem to be bogged down that I assume was because of P0720 OSS. New VDF installed that is why I believe the PCM isn't clearing the P0480 code.