Repair procedures: Removal

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Turn the ignition switch OFF and disconnect the battery negative (-) cable.
Release the residual pressure in fuel line (Refer to the "RELEASE RESIDUAL PRESSURE IN FUEL LINE ").
CAUTION: When removing the fuel pump relay, a Diagnostic Trouble Code (DTC) may occur. Delete the code with the GDS after completion of "Release Residual Pressure in Fuel Line" work.
Remove the intake manifold (Refer to INTAKE MANIFOLD .
Disconnect the rail pressure sensor connector (A), and then remove the sensor (B) from the delivery pipe.

Fig 1: Rail Pressure Sensor Component Location
Courtesy of KIA MOTORS AMERICA, INC.