anyone help out with engine codes on a 94 456GT. I counted the flaxhes and came up with 1,1,1,3 for cyl. 7 thought 12 and 1,1,2,1 for 1 thought 6. Are the codes two digit or four digit? I think they are two digit, and if so anyone know what codes are 11, 12, & 13? Thanks, John