Hondata

Do I need to send the harness as well or just the box?

just the cpr unit itself.

I am still having issues with this.
I sent in the CPR box to be tested, was told it was good
Checked the wiring harness for loose connections/joints. And verified wiring was correct and strong according to instructions.
Tried different power sources, different grounds and a combination of all.
Tried a known working distributor that worked on other ignition systems

Nothing worked. We still get a strong cut at high rpms. I'm at a loss.

Datalog and see if it registers any distributor errors.