Kia Optima Hybrid Owner's Manual Quiz
Engine Control System/Fuel System

Repair Procedures - Injector

In this manual: Engine Control System/Fuel System
General Information — 4Engine Mechanical System — 50Engine Electrical System — 20Emission Control System — 30Engine Control System/Fuel System — 84Automatic Transmission — 98Drive Shaft and Axle — 15Suspension System — 36Steering — 12Restraints — 50Brake System — 38Body (Interior and Exterior) — 54Body Electrical System — 233Heating, Ventilation, and Air Conditioning — 57
11steps
~66min
3/5difficulty
0102030405023.517N·mlb·ft
Tightening torque found on this page
Done 0 of 11

Inspection

  1. Turn the ignition off.
  2. Disconnect the injector connector.
  3. Measure the resistance between terminals 1 and 2 of the injector.
  4. Make sure the resistance is within specification.

    Specification: 13.8 ~ 15.2 [20 °C]

Removal

  1. Turn the ignition switch OFF and disconnect the negative (-) battery terminal.
  2. Relieve the residual fuel pressure in the fuel line (refer to "Relieve Residual Fuel Pressure" in this group).
  3. Disconnect the injector connector (A).
  4. Remove the wire harness bracket mounting bolt (B).
  5. Remove the mounting nut, then disconnect the fuel supply tube (C).
  6. Remove the mounting bolt (D), then remove the delivery pipe and injector assembly from the engine.
  7. Remove the retaining clip (A) and separate the injector from the delivery pipe.

Installation
  • Install the component with the specified torque.
  • Note that internal damage may occur if the component is dropped. In this case, inspect it before use.
  • Apply engine oil to the O-ring of the injector.
  • Inspect the injector O-ring during installation.
  1. Install in the reverse order of removal. Delivery pipe bolt: 18.6 ~ 24 N·m Delivery pipe nut (fuel supply tube): 7.8 ~ 9.8 N·m

Test yourself

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