What is purge volume control valve?
The canister purge valve, also commonly referred to as the purge valve, is an important component of your Evaporative Emission Control (EVAP) system. This system restricts the fuel vapours created in your fuel tank from escaping into the atmosphere by trapping them in a charcoal canister.
What causes an EVAP canister on a Nissan?
P0444 NISSAN Possible Causes Faulty Evaporative Emission (EVAP) Purge Solenoid Control Evaporative Emission (EVAP) Purge Solenoid Control harness is open or shorted Evaporative Emission (EVAP) Purge Solenoid Control circuit poor electrical connection
What does purge volume control solenoid do in Nissan?
P0444 NISSAN Meaning This system controls flow rate of fuel vapor from the Evaporative Emission System (EVAP) canister. The opening of the vapor by-pass passage in the EVAP canister purge volume control solenoid valve changes to control the flow rate.
How does the EVAP canister purge volume control work?
The EVAP canister purge control volume control valve is operated by a step motor for control of flow rate of fuel vapor from EVAP canister. Each time the valve opens or closes to change the flow rate, an on pulse is issued. When no change in the flow rate is needed, the valve remains at a certain opening, hence no pulse signal output is issued.
What to do if an EVAP canister leaks?
SERVICE INFORMATION If the EVAP canister leaks (or has leaked) charcoal, it must be replaced. In addition to replacing the canister, the entire EVAP emission control system must be cleaned to remove charcoal particles released by the leaking canister. To clean the EVAP emission control system, use the service procedure starting on page 3.
P0444 NISSAN Meaning This system controls flow rate of fuel vapor from the Evaporative Emission System (EVAP) canister. The opening of the vapor by-pass passage in the EVAP canister purge volume control solenoid valve changes to control the flow rate.
The EVAP canister purge control volume control valve is operated by a step motor for control of flow rate of fuel vapor from EVAP canister. Each time the valve opens or closes to change the flow rate, an on pulse is issued. When no change in the flow rate is needed, the valve remains at a certain opening, hence no pulse signal output is issued.
SERVICE INFORMATION If the EVAP canister leaks (or has leaked) charcoal, it must be replaced. In addition to replacing the canister, the entire EVAP emission control system must be cleaned to remove charcoal particles released by the leaking canister. To clean the EVAP emission control system, use the service procedure starting on page 3.