the truck is a 2009 with efi live for dpf delete, egr off, egr block plate in and an afe intake to the turbo with the dry filter. a year ago it had the p0101 and power reduce mode with the stock air intake. tried to clean it but didnt help. put a new mass airflow sensor in and was all good and now a year later the p0101 is back with same power reduce going on. is there something going on here or does it need a new sensor? it seems to be reading fine when hooked up to efi live scan tool. I change the dtc to not reported for the p0101 but it still comes up is there something i'm missing here with turning this code off and no reduced power. this is a work truck and needs to be on the road so anyone know what I can do to fix this. other than dpf and egr it has stock tune.