Throttle Body Test; Throttle Body Cleaning - Honda 2004 Odyssey Service Manual

Throttle Body Test

NOTE:
• Do not adjust the throttle stop screw. It is preset at the
factory.
• If the malfunction indicator lamp (MIL) has been
reported on, check for diagnostic trouble codes
(DTCs) (see page 11-4).
1. With the engine off, check the throttle cable
operation. The cable should move without binding
or sticking.
• If the cable operated OK, go to step 2.
• If the cable binds or sticks, check it and its routing.
If the cable is faulty, reroute it or replace it then
adjust it (see page 11-242). When the cable is
properly adjusted, go to step 2.
2. Operate the throttle lever by hand to see if the
throttle valve and/or shaft are too loose or too tight.
• If there is excessive play in the throttle valve
shaft, or any binding in the throttle valve at the
fully closed position, replace the throttle body.
• If the throttle valve and shaft are OK, go to step 3.
3. Connect a scan tool to the data link connector (DLC).
4. Turn the ignition switch ON (II).
5. Check the throttle position with the scan tool. There
should be about 10 % when the throttle is fully
closed and about 90 % when the throttle is fully
opened.
• If the throttle position is correct, Check the
throttle body for carbon deposits, and clean it if
needed.
• If the throttle position is not correct, replace the
throttle body.

Throttle Body Cleaning

1. Check for damage to the air cleaner.
2. Remove the throttle body (see page 11-243).
3. Clean off any carbon from the throttle valve and
inside of the throttle body when carburetor cleaner.
4. Install the throttle body (see page 11-243).
5. Do the PCM idle learn procedure (see page 11-202).
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