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[VIS #1]

Disconnect the battery (-) terminal.
Disconnect the variable intake solenoid valve connector (A).
Disconnect the vacuum hoses (B) from the valve.
Remove the mounting nut (C) and then remove the valve from the surge tank.
Tightening torque:

7.8 - 11.8 N.m (0.8 - 1.2 kgf.m, 5.8 - 8.7 lb-ft)

Courtesy of HYUNDAI MOTOR AMERICA