Much of the interior West is also forecast to see temperatures above August averages. The far eastern and western states will act as bookends to the central warmth with temperatures expected to be a bit cooler-than-average in these areas.
EVAP Canister Purge Valve. When energized, the evaporative canister purge valve allows the fuel vapor to flow from the EVAP canister to the engine. The normally closed valve is pulse width modulated by the PCM in order to precisely control the vapor flow.VAP Vent Valve. The evaporative canister vent valve not only allows the fresh outside air to the EVAP canister during the purge modes, but also allows the diagnostic to pull a vacuum on the fuel tank by closing the vent valve.
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. When the engine is able to use the extra fuel vapor, the intake air flow purges the.