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Home >> Kia >> 2011 >> Optima LX, Standard >> Repair and Diagnosis >> Engine Performance >> Fuel Delivery >> Fuel Delivery System - 2.4L >> Delivery Pipe >> Repair Procedures >> Removal
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Repair Procedures: Removal

WARNING: 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 don't 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 .
    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.
  3. Remove the intake manifold. Refer to INTAKE AND EXHAUST SYSTEM .
  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.
    Fig 1: Injector Connectors, Rail Pressure Sensor Connector, High Pressure Fuel Pipe & Installation Bolt
    G07383968Courtesy of KIA MOTORS AMERICA, INC.
    Fig 2: Delivery Pipe & Injectors
    G07383969Courtesy of KIA MOTORS AMERICA, INC.