P0440 2002 toyota camry

Question

check engine lights on code says p0440

Answer 1

check your gas cap it might be loose. also if the seal is dry or cracking replace it with a NEW Toyota gas cap.

Possible causes

- Missing or loose fuel cap

- Incorrect fuel filler cap used

- Fuel filler cap remains open or fails to close

- Foreign matter caught in fuel filler cap

- EVAP canister or fuel tank leaks

- EVAP system hose leaking

- Fuel tank leaking