HONDATA map sensor error

[gerardr]

I have a problem with my hondata.

It gives me false map sensor reading. It keeps jumping numbers even when sensor is unplugged.

Tested another Hondata board to figure out if I may have a wiring problem. That one had no problems.
Now I took my hondata off the ecu and placed it on the other which I tested as mentioned above. Same problem.
My ecu is fine because the other hondata board worked fine.

Hondata Serial: 25404

[Hondata]

When you say 'hondata board' do you mean the s300 itself, not the ECU?
If swapping the s300 changes the MAP then the problem is the calibration. Erase the S300 and upload it again.