slipvayne9278

ok guys im not new at this but i am when it comes to these sensors and vaccum hoses i got these codes and read on how to fix them, my only problem is i dont know what im looking for pictures would be really helpful i got a 332 code egr valve opening not detected, does anyone know what this is , i also got 538 Insufficient RPM change during KOER dynamic response test/ Operator error, and 311 Thermactor air system inoperative (right side) any help with this would appreciated thank you