Repair Procedures: Removal

Turn the ignition switch OFF and disconnect the battery negative (-) terminal.
Disconnect the boost pressure sensor connector (A).
Remove the boost pressure sensor after removing the mounting bolts (B).
Tightening torque:

9.8 - 11.8 N.m (1.0 - 1.2 kgf.m, 7.2 - 8.7 lb-ft)

Courtesy of HYUNDAI MOTOR AMERICA