2009 Acura CSX Base, AutomaticFACTORY OEM SERVICE PROCEDURE

K20Z3 engine

NOTE: If you are replacing or cleaning the throttle body, start at step  1. If you are removing the throttle body, start at step  4.
  1. Connect the HDS to the DLC while the engine is stopped.
  2. Select the INSPECTION MENU on the HDS.
  3. Do the TP POSITION CHECK in the ETCS TEST.
  4. Remove the air intake duct (A).
    Fig 1: Air Intake Duct And Throttle Body Connector With Water Bypass Hoses (K20Z3 Engine) With Torque Specifications
    G06264769Courtesy of AMERICAN HONDA MOTOR CO., INC.
  5. Disconnect the throttle body connector (B).
  6. Disconnect the water bypass hoses (C), and plug them.
  7. Disconnect the vacuum hoses (D) and the clamp (E).
  8. Remove the throttle body (F).
  9. Install the parts in the reverse order of removal with a new gasket (G), then do this:
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:

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

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