Hyundai Santa Cruz: Engine Control System / RCV Control Solenoid Valve

- Description RCV (Recirculation Valve) Control Solenoid Valve is installed on the intercooler inlet pipe and operates the RCV actuator which controls the by-pass passage of the turbocharger compressor.When the throttle is closed, while the engine is running at cruise rpm (tip-out), the turbocharger boost pressure raises rapidly. The pressure wave strikes a compressor blades causing a knocking noise. To prevent this the ECM opens the recirculation valve which allows excessive boost pressure to vent back to the air cleaner side of the turbocharger compressor.

1.Switch "OFF" the ignition and disconnect the battery negative (-) terminal.

2.Disconnect the RCV control solenoid valve connector.

3.Measure resistance between the valve terminals 1 and 2.

4.Check that the resistance is within the specification.

Specification : Refer to "Specification"

1.Turn the ignition switch OFF and disconnect the battery negative (-) terminal.

2.Remove the air cleaner assembly.(Refer to Engine Mechanical System - "Air Cleaner")

3.Disconnect the RCV control solenoid valve connector (A).

4.Disconnect the RCV control solenoid valve hose (B).

5.Disconnect the RCV control solenoid valve hose (A).

6.Remove the RCV control solenoid mounting bolt (B).

7.Remove the wiring clip (C).

1. Install in the reverse order of removal.