2007- 2011 Honda CR-V PCM Idle Learn Proceedure

If you replace the air cleaner element, reset the PCM with the Honda HDS, and do the PCM idle learn procedure.

**Note:** Disconnecting the battery for a few minutes will also reset the PCM but doing so will cause you to have to reenter the radio code and perhaps stations.

PCM Idle Learn Procedure

The idle learn procedure must be done so the PCM can learn the engine idle characteristics. 

Do the idle learn procedure whenever you do any of these actions:
-Replace the PCM.
-Reset the PCM.
-Update the PCM.
-Replace or clean the throttle body.
-Disassemble the engine or the transmission.

NOTE: Clearing the DTC's with the HDS does not require you to do the idle learn procedure.

Procedure

1. Make sure all electrical items (A/C, audio, lights, etc.) are off.
2. Reset the PCM with the HDS.
3. Turn the ignition switch to ON (II), and wait 2 seconds.
4. Start the engine. Hold the engine speed at 3,000 rpm without load (in P or N) until the radiator fan comes on, or until the coolant temperature reaches 194 degrees F (90 degrees C).
5. Let the engine idle for about 5 minutes with the throttle fully closed.

NOTE: If the radiator fan comes on, do not include its running time in the 5 minutes."


PCM=Powertrain Control Module
DTC =Diagnostic Test Code
HDS=Honda Diagnostic System

I did this to my '07 and to my surprise it did idle a little rough at first and smoothed out during the procedure.