2004 accord sensors not ready error.

I get the following advice: drive it more.
-driven 340mi and mechanic did another reset.
-drivet 400 mi, still the same
-took it to dealership where they said wait for the engine light to turn on.
-apparently hondas have such problems, and no one seems to know how their computers work, what these computers actually need, or how to fix this.

If it wasn't for the state's regulations, life would be simpler and more productive