Honda Accord: Throttle Body Test - Intake Air System - Fuel and Emissions - Honda Accord MK8 2008-2012 Service ManualHonda Accord: Throttle Body Test

Carbon Accumulation Check

NOTE: If the malfunction indicator lamp (MIL) has been reported on, check for diagnostic trouble codes (DTCs).

1. Connect the HDS to the data link connector (DLC) (A) located under the driver's side of the dashboard.

2. Turn the ignition switch to ON (II).


2. Turn the ignition switch to ON (II).

3. Make sure the HDS communicates with the ECM/PCM. If it doesn't, go to the DLC circuit troubleshooting (see page 11-181).

4. Start the engine. Hold the engine speed at 3,000 rpm without load (A/T in P or N, M/T in neutral) until the radiator fan comes on, then let it idle.

5. Check the REL TP SENSOR in the DATA LIST with the HDS. The reading should be below 2.46 percent. If it is not, clean the throttle body (see page 11-332).

Throttle Position Learning Check

NOTE: If the malfunction indicator lamp (MIL) has been reported on, check for diagnostic trouble codes (DTCs).

1. Connect the HDS to the data link connector (DLC) (A) located under the driver's side of the dashboard.

2. Turn the ignition switch to ON (II).


2. Turn the ignition switch to ON (II).

3. Make sure the HDS communicates with the ECM/PCM. If it doesn't, go to the DLC circuit troubleshooting (see page 11-181).

4. Select the INSPECTION MENU with the HDS.

5. Do the TP POSITION CHECK in the ETCS TEST. If needed, clean the throttle body (see page 11-332).

    Component Location Index
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    Throttle Body Cleaning
    Do n o t i n s e r t : your fingers into the installed throve body when you turn the ignition switch to ON (II) or while the ignition switch is in ON (II). If you do, you will seriously injure your ...

    See also:

    Refueling
    1. Park with the driver’s side closest to the service station pump. 2. To open the fuel fill door, push down on the lever located to the left of the driver’s seat. Gasoline is highly f ...

    Shift Lever Does Not Move
    Follow the procedure below if you cannot move the shift lever out of the position. • Releasing the Lock 1. Set the parking brake. 2. Remove the key from the ignition switch. 2. Remove ...

    PCV Valve Inspection
    1. Check the PCV valve (A), hoses (B), and connections for leaks or restrictions. 1.PCV valve when the hose between the PCV valve and intake manifold is lightly pinched (A) with your fingers or ...