No such error code text. Don't know what kind of reader he's using, but
that text is not in Honda's official documentation.
There are several solenoids. The closest error I can come up with is:
P2422 EVAP System Vent Shut Valve Close Malfunction.
P0497 EVAP Low Purge Flow.
Have your dealer look up TSB # 03-040. It describes your exact problem.
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