Throttle Body Cleaning

CAUTION: Do not insert your fingers into the installed throttle body when you turn the ignition switch to ON (II)/press the engine start/stop button, or while the ignition switch is in ON (II)/vehicle in ON mode. If you do, you will seriously injure your fingers if the throttle valve is activated.

Make sure the ignition switch turned LOCK (0) or the engine start/stop button to select the OFF mode.
Check for damage to the air cleaner. If the air cleaner is damaged, replace it (see AIR CLEANER ELEMENT INSPECTION/REPLACEMENT ).
Remove the throttle body (see THROTTLE BODY REMOVAL/INSTALLATION ).
Clean off the carbon from the throttle valve and inside the throttle body with a paper towel soaked in throttle plate cleaner.
NOTE:
- Remove the throttle body to clean it.
- Be careful not to pinch your fingers.
- To avoid removing the molybdenum coating, do not clean the bearing area of the throttle shaft (A).
- Do not spray throttle plate cleaner directly on the throttle body.
- Use Acura genuine throttle plate cleaner.
Fig 1: Identifying Throttle Shaft Cleaning Area
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Install the throttle body (see THROTTLE BODY REMOVAL/INSTALLATION ).
Connect the HDS to the data link connector (DLC) (A) located under the driver's side of the dashboard.

Fig 2: Identifying Data Link Connector
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Press the engine start/stop button to select the ON mode.
Reset the PCM with the HDS.
Select the ETCS TEST in the INSPECTION MENU with the HDS.
Select TP POSITION CHECK and clear the throttle position (TP) learned value.
Turn the ignition switch to LOCK (0) or press the engine start/stop button to select the OFF mode.
Turn the ignition switch to ON (II), or press the engine start/stop button to select the ON mode, and wait 2 seconds without pressing the accelerator pedal.
Do the PCM idle learn procedure (see PCM IDLE LEARN PROCEDURE ).