Hello all, I have a Audi A4 CAPA 3.0 TDI with a CP1H HPFP. For a few months I've been having a small leak on top of the high pressure fuel pump which appears to be coming from the cylinder head. Now I've replaced seals, fuel lines, washers to no avail. I now believe the pump must be cracked, and I'll swap it for another unit. The question I have is can I just swap the pump for another one and it will work, or is there some sort of coding procedure I must do? Thanks.