Hondata

I downloaded the rom editor version 3.5.3 today, and as soon as i cranked the car, it had a CEL. It tuned out to be a baro sensor CEL so i just disabled it and it went away. I've never had to disable it before, but with v3.5.3, i had to check the disable box.

What is the code on your ecu? This sounds like a European ECU that does not have the black box near the EEPROM (baro sensor)