i have a 94' obd1 del sol si sohc vtec and im putting a 01 gsr swap in it, the swap comes w/ obd2 p72 ecu...but my question is should i just buy a obd1-obd2 ecu adaptor harness to make p72 work or can i use my p28 or what would be the best way to go to make it run correctly....? thanks