What kinda special wiring is needed to get this swap running right in my Si. I'm gonna be running the new ECU and whatnot; some guy was trying to tell me I'd need a totally new engine harness, and that I'd be throwing a constant CEL after the swap.

Is this true? What kinda wiring do I need to run.

Thanks

 

What kinda car? Just rewire the harness with your stock existing harness and add wires in that you need.

 

swap your Si engine harness onto the B16A motor. Wire up knock sensor. Call it a day.