Hyundai Elantra: Engine Control System / RCV Control Solenoid Valve

Hyundai Elantra (CN7) 2021-2024 Service Manual / Engine Control / Fuel System / 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.

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).

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.

Electric WGT Control Actuator

Description and operation DesrcriptionThe Electric Waste Gate Actuator(EWGA) is installed on the turbocharger. EWGA operates vain in west gate turbocharger and controls the compressed air by PWM signal of ECM...

Integrated Thermal Management Module (ITM)

Description and operation DescriptionIntegrated Thermal Management Module (ITM) is a device that controls the coolant flow rate according to coolant temperature...

Other information:

Hyundai Elantra (CN7) 2021-2024 Owner's Manual: Warning messages

To release EPB, fasten seatbelt, close door, hood and trunk If you try to drive with the EPB applied, a warning will sound and a message will appear. If the driver's seat belt is unfastened and the engine hood or trunk is opened, a warning will sound and a message will appear...

Hyundai Elantra (CN7) 2021-2024 Service Manual: Components and components location

Component1. Steering column2. Multifunction switch3. Clock spring4. Steering wheel5. Driver airbag module (DAB)..

Tire Rotation

To equalize tread wear, HYUNDAI recommends that the tires be rotated according to the maintenance schedule or sooner if irregular wear develops.

During rotation, check the tires for correct balance.

When rotating tires, check for uneven wear and damage. Abnormal wear is usually caused by incorrect tire pressure, improper wheel alignment, out-ofbalance wheels, severe braking or severe cornering. Look for bumps or bulges in the tread or side of the tire. Replace the tire if you find any of these conditions. Replace the tire if fabric or cord is visible. After rotation, be sure to bring the front and rear tire pressures to specification and check lug nut tightness (proper torque is 79~94 lbf·ft [11~13 kgf·m]).