Kia Optima: Removal - Delivery Pipe. Repair procedures - Fuel Delivery System - Engine Control/Fuel System - Kia Optima TF 2011-2018 Service ManualKia Optima: Removal

In case of removing the high pressure fuel pump, high pressure fuel pipe, delivery pipe, and injector, there may be injury caused by leakage of the high pressure fuel. So dont do any repair work right after engine stops.

1. Turn the ignition switch OFF and disconnect the battery negative (-) cable.
2. Release the residual pressure in fuel line (Refer to Release Residual Pressure in Fuel Line in this group).
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.
3. Remove the intake manifold (Refer to "Intake And Exhaust System" in EM group).
4. Disconnect the injector connectors (A) and the rail pressure sensor connector (B).
5. Remove the high pressure fuel pipe (C).
6. Remove the installation bolt (D), and then remove the delivery pipe and injector assembly from the engine.


Delivery Pipe. Repair procedures
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Installation
Install the component with the specified torques. ...

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