Are you saying that if I am just getting the one code (P0021) it is likely just the ocv? Which side is it (code reader says bank 2)? If it is on the driver side is the turbo safe?
The appeared to be no banjo filter on the driver side, but how far down can the filter fall if it comes out of the bolt? I looked down the hole but there was nothing shallower than say 1.5" down in the hole, could it be deeper than that?