Throttle Body Cleaning

WARNING: This page is about a different car, the 2009 Acura MDX, 2008 Acura MDX, and 2007 Acura MDX. However, it is still accessible from the selected car via links, so may be relevant.

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, you will seriously injure your fingers if the throttle valve is activated.

Make sure the ignition switch is turned OFF.
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 and induction 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 and induction cleaner directly on the throttle body.
- Use Acura genuine throttle plate and induction cleaner.
  
  Fig 1: Identifying Throttle Valve
  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.
Turn the ignition switch ON (II).
Make sure the HDS communicates with the PCM. If it doesn't, go to the DLC circuit troubleshooting (see DLC CIRCUIT TROUBLESHOOTING ).
Reset the PCM with the HDS.
Select the ETCS TEST in the INSPECTION MENU with the HDS.
Select the TP POSITION CHECK and clear the throttle position (TP) learned value.
Turn the ignition switch OFF.
Turn the ignition switch ON (II), and wait 2 seconds without pressing the accelerator pedal.