Removal And Installation: Removal

Disconnect the battery negative (-) terminal.
Disconnect the Knock Sensor (KS) connector (A).

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Remove the KS (A) after removing the bolt.
Tightening torque:

18.6 - 24.5 N.m (1.9 - 2.5 kgf.m, 13.7 - 18.1 lb.ft)

Courtesy of KIA MOTORS AMERICA, INC.
Separate the KS connector (A) by pulling it in the direction of the arrow from the bracket.

Courtesy of KIA MOTORS AMERICA, INC.