Not much for a while. then the canister gets heavier and heavier with gasoline vapors and the car may start smelling like gas. If you let it go long enough the canister can go bad and then you have to replace the canister and the solenoid. And of course your car may not pass emission tests.
https://www.quora.com/What-happens-to-a-car-when-its-evap-canister-purge-solenoid-is-broken
Quick Answer. The canister purge solenoid valve is a container located inside the engine bay that houses fuel vapors to be recycled back into the combustion system when necessary. It is normally mounted on the firewall of the engine compartment. Continue Reading.
https://www.reference.com/vehicles/canister-purge-solenoid-7897245116a99e21
Although generic, the specific repair steps may vary depending on make/model. The Evaporative Emissions System (EVAP) allows fumes from the gas tank to enter the engine to be burned, rather than vented into the atmosphere as an emission. The purge valve solenoid is supplied switched battery voltage. The ECM controls the valve by operating the ground circuit, opening the purge valve at specific times allowing these gasses to enter the engine. The ECM monitors the ground circuit as well, watching for faults.
https://www.obd-codes.com/p0443
In an evaporative emission control system, the purge valve works by controlling the amount of vapor from the charcoal canister. In modern cars, the engine computer controls the purge valve.
https://www.reference.com/vehicles/purge-valve-work-evap-system-6f23d9dc85a464b1
Vent valve (solenoid). system. The EVAP system prevents fuel vapors from the fuel tank from escaping into the atmosphere. The EVAP system collects and temporarily stores the fuel vapors in the charcoal canister. The charcoal canister is filled with activated carbon pellets that can absorb the fuel vapors.
http://www.samarins.com/glossary/vent-valve.html
The EVAP purge solenoid controls the flow of vapors from the EVAP system to the intake. manifold. This normally closed solenoid is pulse width modulated (PWM) by the control module to. precisely control the flow of fuel vapor to the engine. The solenoid will also be opened during.
http://www.greatautohelp.com/sensor-location/purgesolenoid.html
The evaporative emission (EVAP) control system limits the fuel vapors from escaping into the. atmosphere. The EVAP transfers the fuel vapors from the sealed fuel tank to an activated carbon. storage device, the EVAP canister. The EVAP canister stores the vapors until the engine is able to use. the extra fuel vapor.
http://greatautohelp.com/operation/EVAP-System-Codes-Tests.html
Full Answer. Since the engine computer controls the purge valve, when the engine is not running, the valve closes. When the engine runs, the purge valve slowly opens as the engine warms. This allows some of the vapor from the fuel to move from the charcoal canister to the engine.
https://www.reference.com/vehicles/purge-valve-work-evap-system-6f23d9dc85a464b1
One side of the vent valve is connected to the charcoal canister. Another side is connected to the vent hose that has a filter or screen at the end and is attached to the car body or frame. In some cars, the vent valve is attached to the canister. In others, it's installed separately near the canister.
http://www.samarins.com/glossary/vent-valve.html
between the fuel filler cap and the EVAP canister purge valve. The system can test the evaporative. system integrity by applying a vacuum signal, ported or manifold, to the fuel tank in order to create a. small vacuum. The powertrain control module (PCM) then monitors the ability of the system to maintain the vacuum.
http://greatautohelp.com/operation/EVAP-System-Codes-Tests.html
what is evap purge solenoid
The EVAP purge solenoid controls the flow of vapors from the EVAP system to the intake.