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Home >> Kia >> 2020 >> Optima Plug-In Hybrid EX >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Control System (PHEV) >> Engine Control Module (ECM) >> Repair Procedures >> Removal

Repair Procedures: Removal

  1. Turn the ignition switch OFF and disconnect the battery negative (-) terminal.
  2. Remove the air duct and air cleaner.

    (Refer to Engine Mechanical System - "AIR CLEANER ")

  3. Remove the reservoir mounting bolts (A).

    Reservoir mounting bolt  :

    3.9 - 5.9 N.m (0.4 - 0.6 kgf.m, 2.9 - 4.3 lb.ft)

    G13361678Courtesy of KIA MOTORS AMERICA, INC.
  4. Disconnect the ECM connector (A).
    G13361679Courtesy of KIA MOTORS AMERICA, INC.
  5. Remove the ECM bracket assembly after loosening the mounting nuts (A) and bolts (B).

    ECM bracket assembly mounting nut/bolt  :

    9.8 - 11.8 N.m (1.0 - 1.2 kgf.m, 7.2 - 8.7 lb.ft)

    G13361680Courtesy of KIA MOTORS AMERICA, INC.
  6. Remove the ECM after loosening the mounting nuts (A).
    G13361681Courtesy of KIA MOTORS AMERICA, INC.
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