Connect Scantool to Data Link Connector (DLC).
Warm engine up to normal operating temperature.
Turn "OFF" electrical devices and A/C.
Monitor "AIR MASS PER CYLINDER" parameter on the Scantool.
Specification : When EEGR actuator does not operate (5% duty) at idle : 410mg/st ± 50 mg/st
When EEGR actuator operates(Approx. 45% duty) at idle : 360mg/st ± 50 mg/st
EEGR actuator operates as decelerating after rapid acceleration when idle EEGR does not operate, EEGR actuator duty rises to approx. 45% at operating condition. This controlling process lasts for about 56 sec. then EEGR actuator turns "OFF" (duty 5% ).