I just got bought a 90 civic si with a d15b vtec motor swapped in it. The vtec solenoid activation wire is ran into the car but isnt connected to anything at the ecu. The vtec oil pressure wire is also ran into the car and next to the ecu. Its a p28 ecu with the obdo-obd1 jumper harness.

I need to know where i hook the two wires up. I know the activation wire needs to go to a 12v source. Which one is that? Does anyone have a picture of their ecu plugs so i know just what one is A,B, or D. A ecu diagram would help a lot.

Thanks