Kia Optima: Removal - Injector. Repair procedures - Engine Control System - Engine Control/Fuel System - Kia Optima TF 2011-2026 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 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” 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 delivery pipe & injector assembly (Refer to "Delivery Pipe" in this group).
4. Remove the retaining clip (A), and then separate the injector from the delivery pipe.


Inspection
1. Turn the ignition switch OFF. 2. Disconnect the injector connector. 3. Measure resistance between the injector terminals 1 and 2. ...

Installation
Do not reuse the injector retaining clip, O-ring, backup ring, washer seal or combustion sealring. Once an injector is removed, the f ...

See also:

To Reset at a Slower Speed
1. Press the COAST/SET switch and hold it. While the switch is pressed, the vehicle speed will gradually decrease. 2. When the desired speed is obtained, release the COAST/SET switch. ✽ N ...

[CVVT System Mode]
(1) Low Speed / Low Load (2) Part Load (3) Low Speed / High Load (4) High Speed / High Load ...

Temperature Control Actuator. Description and Operation
Description 1. Heater unit includes mode control actuator and temperature control actuator. 2. Temperature control actuator is located at the heater unit. It regulat ...

Copyright www.kiopman.com 2026