0442 evap emission control system malfunction(small leak detected) 0443 evap emission control system purge control valve circuit malfunction 0450 evap emission control system pressure sensor malfunction 0455 evap emission control system malfunction(gross leak detected) there ya go
Trouble code P0441 means:Evaporative emission control system incorrect purge flow
Trouble code P0441 means:Evaporative emission control system incorrect purge flow
EVAP Emission Control System Vent Circuit Malfunction.
The DTC P0449 is: EVAP Emission Control System Vent Vlv/Sol Malf Straight out of my code book. Hope this helps you out.
EVAP Emission control system leak (small). This could be as simple as a loose fuel cap.
EVAP Emission control System Malfunction
Evap Emission Control System Pressure Sensor Low
The code simply indicates that the EVAP emission control detects a leak
EVAP Emission Control System Leak (Large)
Evaporative Emission Control System Leak Detected (small leak) It is a very small leak in your EVAP control system. In fact it could be as small as 0.04' in in diameter.
On a 2001 GMC Sonoma, the evaporative emission control system vent control circuit is typically located near the fuel tank. It is connected to the EVAP canister and may involve a vent solenoid that regulates the flow of vapors. You'll often find the wiring harness and connectors leading to this component near the rear of the vehicle, under the bed or near the fuel filler neck. For precise location, consulting a repair manual or service guide specific to your vehicle is recommended.