Error codes P0171 and P0496 2012 Chevy Cruze Eco

Question

First error code was P0171 so I replaced the mass air flow sensor. the next day the check engine light comes back on and it's the same code plus P0496. I have no idea where to start, there is so much conflicting information. I also notice when I fill up the tank the car shakes and hesitates to turn on. Also if I leave the car running in park too long (about 3-4 minutes) it will turn off.

Answer 1

P0171 Fuel trim system lean

P0496 Evaporative emission system flow during non purge

These code are related to each other,, if there is a purge flow that is stuck open the system will run lean, If anything when the engine is at idle you can probable hear the purge being stuck open like a burping noise ( some vehicle we found where the purge was stuck open made this noise) , and set the same codes.