Function And Operation Principle

Purge Control Solenoid Valve (PCSV) is installed on the surge tank and controls the passage between the canister and the intake manifold. It is a solenoid valve and is open when the ECM grounds the valve control line. When the passage is open (PCSV ON), fuel vapor stored in the canister is transferred to the intake manifold.

Fig 1: Identifying Purge Control Solenoid Valve (PCSV)

Courtesy of KIA MOTORS AMERICA, INC.