Ecu pr4 to pr3

I don’t know what wires go where or where they plug into. I have a B16 and have pr4 ecu and want to switch to pr3 so i have vtec. But I don’t know what 4 wires to connect and where they come from . If anybody can help it would be a great help. thanks

i’d like to jump in on that if i can… except i have a B18C1. and i hear i need to do something similar to that.

thanks also.

I have an ECU pinout in the Engine Swap Guide on the Teg Tips page. If you have more quesitons at that point, just ask. I’ll run you through it.