I put a 2000 SIR engine, b16a2, in my 94 CX HB and the only thing that doesn't work is my speed gauge. I need to know where the wires go into the ecu, what is the pinout for the vehicle speed sensor wire. The speed sensor has 3 wires coming out of it, why is there 3 wires. and doesn't only one go in the ecu.

Thanks your help is appreciated.

 

i was told pin c18, but where is that in the ecu.

 

which ecu are you running?