Your mention of “cat cleaning in your own thread for steering help” is literally hilarious.
And that too completely vague,
Hard steer effort is usually accompanied by recorded error messages which can be pulled from the dlc, now as you are vague on if your car is factory eps (some gray import or ncp) or converted, im going to go with converted.
If the conversion guy didnt bother with connecting the data lines to the cars own bus network then its pretty self explanatory that your cat converter cleanup Honda dealership could not give you an answer.
Head over to a workshop that doesnt do stupid work like bathing a kitty and ask them to pull a vehicle health report, if no eps is showing up in it, ask them to repair the wiring for it and then retest the car, the problem will reveal itself.
