LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Acura >> 2012 >> TL Base >> Repair and Diagnosis >> Engine Performance >> System >> Intake Air System >> Throttle Body Cleaning
April 5, 2026: LEMON Manuals is launched! Read the announcement.

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.
  1. Check for damage to the air cleaner element. If the air cleaner element  is damaged, replace it.
  2. Remove the throttle body .
  3. 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
    G08069837Courtesy of AMERICAN HONDA MOTOR CO., INC.
  4. Install the throttle body .
  5. Reset the ECM/PCM with the HDS (see HDS CLEAR COMMAND ).
  6. Turn the ignition switch to ON (II), or press the engine start/stop button to select the ON mode and wait 2 seconds.
  7. Do the ECM/PCM idle learn procedure (see ECM/PCM IDLE LEARN PROCEDURE ).