I have 2001 Toyota Camry codes P0440, P0441, P0446. Will this affect gas mileage or harm the car if driven?

Question

Check engine light on 2001 Toyota Camry, 4cyl. sedan. Codes are P0440, P0441, P0446. Will this hurt the engine if I delay fixing it? Or will this affect gas mileage?

Answer 1

All the codes are related to EVAP system (vapors released by the gas tank). Some of those vapors are recycled back to the engine. It's possible that may notice some gas mileage lost.