I got a B18C GSR motor, and its OBD2. Supposively they did away with this VTEC oil pressure switch on my motor, and I am going to run the OBD1 P72 ECU which requires this sensor. How am I suppose to hook this up now? Do I need to buy a new OBD1 VTEC solenoid or is there a way around this? The solenoid is $350, and the sensor is $80. I dont want to pay this if I dont have to. Anyone with any ideas about this?? I believe it is suppose to be here.

 

you have the solenoid already, you just need the pressure switch. i couldn't see the plug for it in your pic though. it's only 2 wires and 1 of them is a ground. the other goes to the ecu. D6 is the pinout, i believe.

 

I know I have the solenoid, and I know I need the pressure switch. You dont see it there, because its not there. Its 2 wires, blue and black, but I have to run them from the switch to the canon plug, and the black to the ground. My problem is, I dont know if there is a way around not using this switch and faking the ECU out to thinking there is one there, or if it will be easy to just drill and tap a hole and screw the switch in.

 

you have a couple options:

1. pick up a used vtec solenoid with pressure switch and plug from the boards (no more than $80)

2. pick up a chipped ecu that has the pressure switch disabled.

3. bypass the pressure switch via this method:

pinouts:
VTEC Solenoid Yellow/Green A4
VTEC Oil Pressure Sensor Blue D6
VTEC Ground Black Chassis Ground

from the ecu, take the wire blue (d6) and splice it into yellow/green (a4). this method tricks the ecu into thinking the oil pressure sensor is on board and well. proven method for both my previous cars, as well as h-t.

 

how dangerous is option 3?

I have to buy an ECU anyways, so this may be an option. But, I would think option 1 would be the best one if 3 is too dangerous.

 

u can tap the hole where the switch is suppose to be and just put in a diff. switch...or get a use b16 soleioid wit the switch...gsr jdm doesnt come wit the psi switch..mine was the same also but lucky i had a b16 head layin around so i just switched it..