obd 2 codes and how to fix them

I have a 1997 grand am and the codes that showed up was p1675
p1655 and p0740 if some one could help please feel free to do so

P1675 is your EVAP Vent Solenoid Control Circuit. P1655 is EVAP Purge Solenoid Control Circuit. And last but not least P0740 is a Torque Converter Clutch Circuit Malfunction. I hope this helps! Unfortunately I have no idea how to fix these things but at least you have a start. Hopefully the other members will be able to shed some light on the subjects.