Turn ignition switch OFF.
Disconnect the variable swirl actuator connector.
Check that swirl valve is stuck by foreign material.
Measure resistance between motor (+) and (-) control terminals.
Specification: Refer to Specification section.
Measure resistance between voltage supply terminal and ground terminal of position sensor.
Check that the resistance is within the specification.
Specification: Refer to Specification section.
Disconnect the battery (-) terminal.
Disconnect the variable swirl actuator connector (A).
Remove the installation bolts (B) after removing the engine wiring harness part (C).
Remove the shaft link assembly (C) after removing the E-ring (A) and the washer (B).
Remove the variable swirl actuator.
Installation is the reverse order of removal.
Variable swirl actuator installation bolt:
9.8 ~ 11.8 Nm (1.0 ~ 1.2 kgf.m, 7.2 ~ 8.7 lb-ft)
Confirm normal operation of the actuator more than 3 times when the ignition switch OFF after full warm up (Engine Coolant Temperature > 70°C).
After replacing the Variable Swirl Actuator, MUST perform the "Component Change Routine" procedure. Otherwise trouble related with engine performance or emission control may occur until ECM learning about the component is over.
Turn ignition switch OFF.
Connect a scan tool to Data Link Connector (DLC).
Turn ignition switch ON.
Select "Vehicle, Model year, Engine, System".
Select "Vehicle S/W Management".
Select "Component Change Routine".
Select "Swirl Control Valve Change".
Perform the procedure in accordance with the message.