P0440

(_P0440_)
- The scan tool indicates Diagnostic Trouble Code (DTC) PO44O: Evaporative Emission (EVAP) control system leak detected.

Possible Cause
- Vacuum Connections
- Fuel Tank
- Fuel fill cap
- EVAP Control Canister Vent Shut Valve
- EVAP Control Canister Vent Shut Valve Circuit
- EVAP Purge Control Solenoid Valve
- EVAP Purge Control Solenoid Valve Circuit
- EVAP Bypass Solenoid Valve
- EVAP Bypass Solenoid Valve Circuit
- Fuel Tank Pressure Sensor
- Fuel Tank Pressure Sensor Circuit
- EVAP Control Canister
- Throttle Body