Hey guys so Im swapping a b20b4 into my previously auto 99 Civic I have the 5 speed swap and engine swap done other than I went to re wire the iacv today and noticed the plug I need to repin for it would not plug into the p75 I bought that supposedly came out of a 2000 teg it was a auto ecu I know it would throw a check engine light but for now I just wanted to get it running for now so my question was do I need a OBD2a to OBD2a conversion harness the ecu number is37820-p75-a54 thanks for any help guys!!