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
    ...

    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:

    Under-floorTWC Removal/Installation
    1. Raise the vehicle on a lift. 2. Remove the exhaust pipe hangers (A). 3. Remove the under-floor TWC (B). 4. Install the parts in the reverse order of removal with new gaskets (C) and new s ...

    Remote Transmitter Care
    Replacing the Button Battery If the indicator does not come on when the button is pressed, replace the battery. NOTICE An improperly disposed of battery can damage the environment. Always confi ...

    Connecting Rod and Crankshaft End Play Inspection
    1. Remove the oil pump (see page 8-16). 2. Remove the baffle plate (see step 8 on page 7-14). 3. Measure the connecting rod end play with a feeler gauge between the connecting rod and the cran ...