Is there a way to bypass a vtec pressure switch without having one??. We are trying to use a chipped OBD1 p28 on a JDM OBD 2 B18c. Since the OBD2 engine doesn't have a VTEC pressure switch and the p28 looks for one the vtec DOESN'T WORK.....CAN WE BYPASS THIS???

 

i had the same problem. what you do is jumper the oil pressure switch with the vtec solenoid in your conversion harness together. look for an ecu pinout on the site.