2017 Kia Optima Plug-In Hybrid EXFACTORY OEM SERVICE PROCEDURE

Repair Procedures: Removal

  1. Release the residual pressure in fuel line.

    (Refer to Fuel Delivery System - "RELEASE RESIDUAL PRESSURE IN FUEL LINE ").

  2. Turn the ignition switch OFF and disconnect the battery negative (-) terminal.
  3. Remove the intake manifold.

    (Refer to Engine Mechanical System - "INTAKE MANIFOLD ")

  4. Disconnect the rail pressure sensor connector (A), and then remove the sensor (B) from the delivery pipe.

    Rail Pressure Sensor:Β 

    30.0 - 35.0 N.m (3.0 - 3.6 kgf.m, 22.1 - 25.8 lb.ft)

G12347305
Factory Service Tools

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.

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