I have a question that I have no explanation for. Ok so I run a bama revx tuner with 91 performance tune and 93 race my tuner gives po299 which is an underboost issue with that said I more inclined to say it's a restriction issue or a hose leak some where which I haven't been able to pinpoint yet. Then to confuse myself even more I went to AutoZone and and they back with that and two or three other codes the system recommended to change the wastegate hose. However mine has 2 hose so far I...

Different codes from different sources