EVAP soleniod failure due to road salt on Honda Odyssey

Problem Description and Possible Solution
The evaporative emission control solenoid can fail in areas of the country where salt is used on the roads during winter.
Problem Data
RepairPal Verified
Average mileage: 110,000 (110,000–110,000)
2 model years affected: 1999, 2000
3 people reported this problem
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vent selenoid or purge selenoid is causing the check engine to light up. where are those parts located