i got a 98 type r obd2 i putting a 94 gsr obd1 motor and it doesnt have a crank angle sensor on pulley so how do i bypass it? i wanna run a obd1 p72 will it start with the piggy back harness that converts obd2 to obd1 on the ecu?

 

OBD-1 ECU's don't require that sensor so as long as you're running the OBD-1 P71 you'll be fine.