Usually related to the evaporative system leak in your vehicle. Possibly just a loose or defective gas cap but might involve a leak or valve problem in the evap system.
Trouble code P0440 means: EVAP System No Flow During Purge
Trouble code P0440 means:Evaporative emission control system malfunction
Trouble code P0440 means: EVAP System No Flow During Purge
Coolant Temp below thermostat regulating temp.
Trouble code P1336 means: CKP System Variation Not Learned
Trouble code P0440 means:Evaporative emission control system malfunction
Trouble code P0440 means:Evaporative emission control system malfunction
Trouble code P0440 means:Evaporative emission control system malfunction
Trouble code P0440 means: Evaporative emission control system malfunction
Exhaust Gas Recirculation (EGR) Valve Pintle Stuck Open
To unlock the radio on a 2001 Pontiac Aztek, you typically need the radio's security code, which is often found in the owner's manual or can be obtained from a dealership if you don't have it. Once you have the code, turn on the radio and enter it using the preset buttons. If the radio displays "LOC," you may need to leave it powered on for a certain period (usually around one hour) before entering the code. If you encounter difficulties, consulting a professional or the dealership may be necessary.
Trouble code P0440 means: EVAP Purge System Fault Trouble code P0441 means: EVAP Purge Flow Monitor Fault