LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Honda >> 2004 >> Civic Si >> Repair and Diagnosis >> Engine Performance >> System >> Intake Air System (Hatchback) >> Throttle Body Removal/Installation
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Throttle Body Removal/Installation

  1. Remove the intake air duct (A).
    Fig 1: Removing Throttle Body
    G01399595Courtesy of AMERICAN HONDA MOTOR CO., INC.
  2. Disconnect the connectors from the IAC valve (B), EVAP canister purge valve (C), MAP sensor (D), and TP sensor (E).
  3. Disconnect the water bypass hoses (F), and plug the water bypass hoses.
  4. Disconnect the vacuum hoses (G).
  5. Remove the throttle cable (H) and the actuator cable (with cruise control) (I).
  6. Remove the throttle body (J).
  7. Install the parts in the reverse order of removal with a new gasket (K), then recheck these items:
    • Do not adjusting the throttle stop screw (L).
    • Do the ECM idle learn procedure after throttle body has been replaced (see ECM IDLE LEARN PROCEDURE ).
    • Refill the radiator with engine coolant (see COOLANT REPLACEMENT ).