ok the way i wired it was i cut the pressure switch and grounded the blk wire and wired the BLU/BLK to D6, & vtec selinoid GRN/YEL to A4 a its a obd2 b18c1 in a 94 eg hatch im using a obd2 gsr engine harness & im using a p28 am i doing somthing wrong lmk