K20Z2 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.

Connect the HDS to the DLC while the engine is stopped.
Select the INSPECTION MENU on the HDS.
Do the TP POSITION CHECK in the ETCS TEST.
Remove the intake air duct (A).

Fig 1: Intake Air Duct And Throttle Body Connector With Water Bypass Hoses (K20Z2 Engine) With Torque Specifications
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Disconnect the throttle body connector (B).
Disconnect the water bypass hoses (C), and plug them.
Disconnect the vacuum hose (D).
Remove the throttle body (E).
Install the parts in the reverse order of removal with a new gasket (F), then do this:
- Do the ECM/PCM idle learn procedure after replacing the throttle body (see ECM/PCM IDLE LEARN PROCEDURE ).
- Refill the radiator with engine coolant (see COOLANT REPLACEMENT ).

CAUTION: Do not insert your fingers into the installed throttle body when you turn the ignition switch ON (II) or while the ignition switch is ON (II). If you do, there will be serious injury to your fingers if the throttle valve is activated.