P72 OBD1 VTEC oil pressure switch
 

i need help wiring the oil pressure switch. P72 OBD1. i read that the ground has to be pluged to the ECU. but what pin? i have the ground on the chassis but keep getting code 22. if you have done it sucessfully, can you take pic of the wiring at the ECU. it will be helpfull for alot of us out there with the same issue. theres alot of us out there with the same qustions. but not alot of answers. Engine B18C JDM. OBD1 P72.