G'day all. Long time browser, first time poster. I own a BF 2 manual 327 rwkw. Bought it 3 years ago as is and unsure on all mods. The problem is when on boost when accelerating hard it triggered P0238 Turbo boost A (tc/sbc-a) ckt high fault code as well as pretty bad shuddering. Does anyone know the likely cause of this? I moved interstate a few months ago so can't take the coon to the tuner and not sure if a local mechanic can easily pinpoint the problem.