Passed- Gas Cap test, Evap Components, and Oxides of Nitrogen(NOX) in grams/mile by 2.16(2.50 is the standard)

I failed- Hydrocarbons in grams/mile by 2.77(1.00 is the standard)
Carbon Monoxide in grams/mile by 21.93(12 is the standard)


What should I do 2 fix it 2 pass?