Throttle Body Cleaning: Cleaning

2018 Acura TLX Base, 2.4L EngSECTION Cleaning
CAUTION:

Do not insert your fingers into the installed throttle body when you turn the vehicle to the ON mode, or while the vehicle is in ON mode. If you do, you will seriously injure your fingers if the throttle valve is activated.

  1. Air Cleaner Element - Check
    1. Make sure the vehicle to the OFF (LOCK) mode.
    2. Remove the air cleaner element - Refer to: Air Cleaner Element Removal, Installation, and Inspection (V6), or Air Cleaner Element Removal, Installation, and Inspection (L4) .
    3. Check for damage to the air cleaner element. If the air cleaner element is damaged, replace it.
  2. Throttle Body - Remove - Refer to: Throttle Body Removal and Installation (V6), or Throttle Body Removal and Installation (L4)
  3. Throttle Body - Clean
    GHH199628Courtesy of HONDA, U.S.A., INC.
    1. Clean off the carbon from the throttle valve and inside the throttle body with a paper towel soaked in throttle plate cleaner.
    • 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.
  4. Throttle Body - Install - Refer to: Throttle Body Removal and Installation (V6), or Throttle Body Removal and Installation (L4)
  5. HDS - ConnectΒ 
  6. PCM - ResetΒ 
  7. TP POSITION CHECK - Select
    1. Select the ETCS TEST in the INSPECTION MENU with the HDS

    2. Select TP POSITION CHECK and clear the throttle position (TP) learned value

    3. Turn the vehicle to the OFF (LOCK) mode

    4. Turn the vehicle to the ON mode, and wait 2 seconds without pressing the accelerator pedal.

  8. PCM - Idle LearnΒ 
RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

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