IG KEY "ON", ENGINE "ON"

Connect GDS(scantool) to Data Link Connector (DLC).

Allow the engine to warm up to normal operating temperature.

Electrical system and A/CON "OFF".

Select "Engine speed", "VGT actuator" and "Boost pressure sensor" parameters on the GDS(scantool).

Monitor "Engine speed", "VGT actuator" and "Boost pressure sensor". (Connect vacuum gauge to VGT vacuum hose using "T" pipe if possible.)

[ Current data at idle ]

[Installing vacuum gauge to VGT actuator valve]

[ Point of vacuum guage installing]

☞ Engine speed sensor : Must keep 800 ± 50 rpm at idle.

☞ VGT actuator : Must keep 66 % at idle.

☞ VGT control vacuum : Must keep appox. -50~-60 Kpa at VGT solenoid duty 66%

☞ Boost pressure sensor : Must keep atmospheric pressure of present vehicle position (refer to atmospheric pressure current data) ± 100 hPa at idle.

Monitor changed data of "VGT actuator", "Boost pressure sensor" and changed vacuum at stall test(acceleration).

[Current data at stall test]

☞ Engine speed sensor : 2200 ± 100 rpm at stall test.

☞ VGT actuator : 53 % at stall test.

☞ VGT control vacuum : Must keep appox. -25 Kpa at VGT solenoid duty 53 % at stall test.

☞ Boost pressure sensor : 1,700 ± 100 hPa at stall test.