Hondata

Are you sure it is seated on the pins properly?

Have the capacitors been replaced in the ECU?

Have you tried your ECU in a known working vehicle?

You never mentioned what vehicle this is in.

If the ECU is damaged it will have to be replaced. You may have a dealer that can do K-Pro installs near you than can take care of this for you: https://www.hondata.com/us-dealers

Your battery voltage appears to be low, I would recommend that you try charging the battery before doing anything further.

Do not disconnect the battery.

Hold the start button and it should do something.

Please send the feedback info as requested.

With everything plugged in and the ignition in the on position, go to the Help menu and click on “send feedback”. Include a detailed description of the issue.

Unplug from the laptop and the vehicle, then close and reopen the software and only plug in the USB. It should prompt to update the firmware. Let this finish, then plug into the vehicle.

Your software is out of date. You need to download the most recent version and then upload to the ECU.

You need to try swapping the K-Pros to see where the issue is.

Are you swapping the K-Pro into your ECU when testing this?

Have you uploaded the same calibration to both ECU's?

It sounds like there is a problem with the socketing of the ECU. I would have the shop that socketed it test it and make sure that it is socketed correctly and working.

If you change the rev limit to something low like 2000 rpm, does it take the change and rev limit at the new setting?

Without the calibration and datalogs showing the actual AF ratio, it's hard to say what might be happening.

I can't tell you what it will do if it is not connected properly. You will have to test and see if it works as it should.