High Pressure Fuel Line

Turn the ignition switch OFF and then remove the battery negative (-) terminal.
Release the residual pressure in fuel line.
(Refer to "RELEASE RESIDUAL PRESSURE IN FUEL LINE .")
Disconnect the engine coolant temperature sensor (A).

Courtesy of
Separate PCSV (A) from PCSV bracket (B) to make a gap for removing delivery pipe.

Fig 1: PCSV And PCSV Bracket
Courtesy of KIA MOTORS AMERICA, INC.
Disconnect the ignition coil (A) and CMPS connectors (B).
Unfasten the harness bracket (C) and make a gap for removing the high pressure fuel pipe by moving the bracket (C).

Courtesy of
Remove the vacuum pipe mounting bolts (A).

Courtesy of
Remove the high pressure fuel pipe function block mounting bolt (A) and the high pressure fuel pipe flange nut (B).
High pressure fuel pipe flange nut:

26.5 ~ 32.4 N.m (2.7 ~ 3.3 kgf.m, 19.5 ~ 23.9 lb-ft)

High pressure fuel pipe function block mounting bolt:

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

Courtesy of
Remove the high pressure fuel pipe flange nut with the special service tool (A).
[SST No.: 09314-3Q100 or 09314-27130]

High pressure fuel pipe flange nut:

26.5 ~ 32.4 N.m (2.7 ~ 3.3 kgf.m, 19.5 ~ 23.9 lb-ft)

Courtesy of
Remove the high pressure fuel pipe (A).

Courtesy of