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Home >> Suzuki >> 2002 >> XL-7 Plus >> Repair and Diagnosis >> Engine Performance >> Theory and Operation >> Engine Controls - Theory & Operation >> Emission Systems >> Evaporation Emission Control System >> Fuel Tank Pressure Control Valve
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Fuel Tank Pressure Control Valve

Fuel tank pressure or vacuum is controlled by Fuel Tank Pressure Control Valve (FTPCV). When fuel tank pressure reaches a specified value, FTPCV opens and allows fuel vapors to enter EVAP canister. When fuel tank pressure becomes negative and reaches a specified value, FTPCV opens and allows outside air to flow into fuel tank.

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