Working on a project that has a 07 6.2 (408) 11.5-1 cammed and ECU out of a Escalade using a truck harness. It will start and run for a few Seconds and stall. Made changes in ECU DOD off, VVT zeroed out, idle raised air flow adjusted up to 50% over stock and still no change. It is still running rich when it does fire AFR around 10.6. Anyone ever run in to this issue?