does anyone know how to install this apexi avc-r to the ecu one harress has 15 wires coming out of the ecu box i think it's the one but not sure if this harrness is right theres 3 harress total going into the ecu need help please!!!!!!

 

You use the Apexi install manual.

 

yes but does not give any info on honda's only toyo and Nissan need help with cpu wire colors