Check VGT actuator component resistance
IG KEY "OFF", ENGINE "OFF".
Disconnect VGT actuator connector.
Measure the resistance between VGT actuator component terminal 1 and 2.
Specification : 14.7 ~ 16.1Ω (20℃)
Is VGT actuator component resistance within the specification?
YES
Go to "2.Check VGT actuator operation" as follows.
NO
Replace VGT actuator and go to "Verification of Vehicle Repair".
Check VGT actuator operation
IG KEY "ON", ENGINE "ON".
Check that VGT actuator operating duty is 76% after warming engine up.
Check if vacuum generates after disconnecting VGT valve vacuum hose.
Check if vacuum generates when decelerating after rapid acceleration (Vacuum must not generates, correct VGT actuator operating duty is 45%).
Specification : VGT actuator duty 76% : vacuum generates
VGT actuator duty 45% : vacuum does not generate
YES
Go to "Verification of Vehicle Repair".
NO
Replace VGT Control solenoid valve and go to "Verification of Vehicle Repair".
※ Repeat this process 2~3 times.
