Mustang GT V8-4.6L SOHC VIN X (1998)
Canister Purge Control Valve: Description and Operation
Green States
The evaporative emission canister purge valve (EVAP canister purge valve) is:
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in-line with the evaporative emissions canister (EVAP canister) and controls the flow of fuel vapors out of the evaporative emission canister.
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normally closed.
When the engine is shut OFF, vapors from the fuel tank flow into the evaporative emission canister. After the engine is started, the evaporative emission
canister purge valve is engaged and opens, drawing air through the evaporative emissions canister, which purges the fuel vapors from the evaporative
emissions canister into the engine. With the evaporative emission canister purge valve open, vapors from the fuel tank are routed directly into the engine.
