Operation CHARM
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Subaru
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1999
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Legacy Outback AWD F4-2.5L DOHC
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Repair and Diagnosis
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Powertrain Management
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Emission Control Systems
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Evaporative Emissions System
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Evaporative Check Valve
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Description and Operation
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Drain Valve
Drain Valve
The drain valve is located on the line connecting the air filter and canister, at a point just below the air filter. The drain valve is forcibly closed by a signal from the ECM while the evaporation system diagnosis is being conducted.