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Home >> Volvo >> 2012 >> XC90 Base, FWD >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Ignition And Engine Control Systems - Specifications, Other >> Vehicle Communication Information, Engine Control Module (ECM) (B8444S; 2005-2011) >> Description Of Activations >> Component/Function >> Evaporative Emission System (EVAP) Valve
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Evaporative Emission System (EVAP) Valve

The evaporative emission system (EVAP) valve opens and closes 5 times per second. Activated using the start button and stopped using the stop button.

There is an audible clicking sound from the EVAP valve.