I am swaping a 2000 JDM ITR B18C5 into a 94 civic Si, I am having the P28 ecu chipped with skunk program and intend to use my 94 Si engine harness on the new engine. Do I need an OBD1 distributor? If I do is there any difference in DOHC OBD1 distributors? Thanks for your help in advance.