Hyundai Elantra Owners and Service Manuals

Hyundai Elantra: Engine Control System / RCV Control Solenoid Valve

Description and operation
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.

Specifications
Specification
Item
Specification
Coil Resistance (Ω)
28.3 - 31.1 [20°C (68°F)]

Schematic diagrams
Circuit Diagram

Harness Connector

Repair procedures
Inspection
1.
Turn the ignition switch OFF.
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"
Removal
1.
Turn the ignition switch OFF and disconnect the battery negative (-) cable.
2.
Remove the air cleaner assembly.
(Refer to Engine Mechanical System - "Air Cleaner Assembly")
3.
Disconnect the RCV control solenoid valve connector (A).

4.
Remove the vacuum hose (A).
5.
Remove the RCV control solenoid valve (C), after loosen mounting bolt (B).
Tightening Torque :
9.8 - 11.8 N.m (1.0 - 1.2 kgf.m, 7.2 - 8.7 lb-ft)

Installation
   
Install the component to the specified torques.
Note that internal damage may occur when the component is dropped. In this case, use it after inspecting.
Insert the sensor in the installation hole and be careful not to damage it during installation.

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