2-Stage variable Vane Pump improves the fuel economy by
controlling the oil pressure into two stages and by optimizing the
hydraulics of low/medium rpm.
The oil pressure/temperature sensor delivers the pressure
information to ECM by measuring the oil pressure and temperature from
oil pump, and ECM maintains the pressure discharged from the RPM
constantly by controlling the proportional control valve.


Control the frequent operation of solenoid by setting the
mode change timing differently when increasing or decreasing the engine
rpm.

Other information:
Inspection
If idle rpm is unstable or engine stops, check the ETC module operation with GDS diagnostic tool.
And if necessary, clean carbon in the throttle body.
1.
Connect the GDS to the Data Link Connector (DLC).
2.
Select "Vehicle S/W management" > "Inspection / Test" > "ETC Performan ...
Troubleshooting
SymptomCause of the symptomRemedyExcessive play in steeringLoose U-joint boltRetighten or replace as necessaryLoose yoke plugRetightenLoose steering gear mounting boltsRetightenLoose or worn tie rod endRetighten or replace as necessarySteering wheel does not return to its origin ...