Intake Air System: Other Honda Fit GE

Carbon Accumulation Check

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

Scheme 250

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).
3. Make sure the HDS communicates with the ECM/PCM. If it doesn't, go to «DLC CIRCUIT TROUBLESHOOTING»(ref-320426-S32678800202009071400000) .
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 deg. If it is not, clean the throttle body (see «THROTTLE BODY CLEANING»(ref-320437-S26671565662009071400000) ).

Throttle Body Cleaning

Scheme 251

Scheme 252

1. Make sure the ignition switch is turned to LOCK (0).
2. Check for damage to the air cleaner. If the air cleaner is damaged, replace it (see «AIR CLEANER REMOVAL/INSTALLATION»(ref-320437-S29837794652009071400000) ).
3. Remove the throttle body (see «THROTTLE BODY REMOVAL/INSTALLATION»(ref-320437-S21155820802009071400000) ).
4. Clean off the carbon from the throttle valve and inside the throttle body with a paper towel soaked in throttle plate cleaner. NOTE: Always 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.
5. Reinstall the throttle body (see «THROTTLE BODY REMOVAL/INSTALLATION»(ref-320437-S21155820802009071400000) ).
6. Connect the HDS to the data link connector (DLC) (A) located under the driver's side of the dashboard.
7. Turn the ignition switch to ON (II).
8. Reset the ECM/PCM with the HDS.
9. Select the ETCS TEST in the INSPECTION MENU with the HDS.
10. Select the TP POSITION CHECK, then clear the throttle position (TP) learned value.
11. Turn the ignition switch to LOCK (0).
12. Turn the ignition switch to ON (II), and wait 2 seconds without pressing the accelerator pedal.
13. Do «ECM/PCM IDLE LEARN PROCEDURE»(ref-320447-S03803966382009071400000) .

Scheme 253

Scheme 254

Scheme 255

Scheme 256

1. Disconnect the MAF sensor/IAT sensor connector (A), then remove the air cleaner cover (B) and the air cleaner element (C). NOTE: Be careful not to damage the MAF sensor/ IAT sensor on the air cleaner cover.
2. Remove the air cleaner chamber (D).
3. Apply protective tape to the air cleaner, the cowl cover, and the battery terminal fuse box (A) as shown below.
4. Remove the battery hold down, and reposition the battery (B). Reposition the radiator upper hose (C), and the breather pipe (D) as shown below. NOTE: Do not disconnect the battery terminals.
5. Apply protective tape to the air cleaner (A) as shown below.
6. Turn the air cleaner (B) case as shown below.
7. Remove the air cleaner case (A) as shown below.
8. Install the parts in the reverse order of removal.

Scheme 257

1. Open the air cleaner housing cover (A).
2. Remove the air cleaner element (B) from the air cleaner housing (C).
3. Check the air cleaner element for damage, dirt, or clogging. If it is damaged or clogged, replace it. NOTE: Do not use compressed air to clean the air cleaner element.
4. Clean and remove any debris from inside the air cleaner housing.
5. Install the parts in the reverse order of removal. If you did not replace the air cleaner element, this procedure is complete. If the maintenance minder required air cleaner element replacement, «RESETTING THE MAINTENANCE INFORMATION DISPLAY»(ref-320424-S14823899112009071400000) . If you replace the air cleaner element, reset the ECM/PCM with the HDS and do «ECM/PCM IDLE LEARN PROCEDURE»(ref-320447-S03803966382009071400000) .