Honda HR-V Owners & Service Manuals

Honda HR-V: Throttle Body Cleaning

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.
  3. Check for damage to the air cleaner element. If the air cleaner element is damaged, replace it.

2. Throttle Body - Remove

3. Throttle Body - Clean

Engine Control System & Engine Mechanical - Testing & Troubleshooting

  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 Honda genuine throttle plate cleaner.

4. Throttle Body - Install

5. HDS - Connect

6. PCM - Reset

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 Learn

VTEC ROCKER ARM TEST

Special Tools Required

VTEC Adapter 070AJ-0010100

Engine Control System & Engine Mechanical - Testing & Troubleshooting

Air Pressure Regulator 07AAJPNAA101

Engine Control System & Engine Mechanical - Testing & Troubleshooting

Test

1. Cylinder Head Cover - Remove

2. VTEC Rocker Arm - Test

Engine Control System & Engine Mechanical - Testing & Troubleshooting

  1. Rotate the crankshaft pulley clockwise. Make sure that intake secondary rocker arm A and intake secondary rocker arm B are separated and that intake secondary rocker arm A and intake secondary rocker arm B should move independently:
    • If intake secondary rocker arm A and intake secondary rocker arm B move together, remove the secondary rocker arms as an assembly, then check that the pistons in the secondary rocker arms move smoothly. If any rocker arm needs replacing, replace all of them as an assembly, then retest.
    • If each rocker arms moves independently, go to next procedure.

3. Air Pressure - Check

  1. Check that the air pressure on the shop air compressor gauge indicates over 400 kPa (4.0 kgf/cm 2, 57 psi).

4. Valve Clearance - Inspect

5. VTEC Change Over - Test

Engine Control System & Engine Mechanical - Testing & Troubleshooting

  1. Install the VTEC adapter to the inspection hole
  2. Connect the air pressure regulator
  3. Loosen the valve on the air pressure regulator, and apply the specified air pressure.

Specified Air Pressure: 290 kPa (3.0 kgf/cm2, 42 psi)

Engine Control System & Engine Mechanical - Testing & Troubleshooting

  1. With the specified air pressure applied, rotate the crankshaft pulley clockwise. Intake secondary rocker arm A should move together with intake secondary rocker arm B:
    • If intake secondary rocker arm A and intake secondary rocker arm B move independently, remove the secondary rocker arms as an assembly, then check that the pistons in the secondary rocker arms move smoothly. If any rocker arm needs replacing, replace all of them as an assembly, then retest.
    • If each rocker arms move together, go to step 5.
  2. Remove the air pressure regulator and the VTEC adapter.

6. All Removed Parts - Install

  1. Install the parts in the reverse order of removal.

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