Honda Accord: ECM/PCM Idle Learn Procedure - Idle Control System - Fuel and Emissions - Honda Accord MK8 2008-2012 Service ManualHonda Accord: ECM/PCM Idle Learn Procedure

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

Do the idle learn procedure whenever you do any of these actions:

 - Replace ECM/PCM.

 - Reset ECM/PCM

 - Update ECM/PCM.

 - Replace or clean the throttle body.

 - Disassemble the engine or the transmission.

NOTE: Erasing DTCs 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 ECM/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 (A/T in P or N, M/T in neutral) until the radiator fan comes on, or until the engine coolant temperature reaches 194 Р’В°F (90 Р’В°C).

5. Let the engine idle for about 5 minutes with the throttle fujly closed.

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

    Idle Speed Inspection
    NOTE: - Before checking the idle speed, check these items:  - The malfunction indicator lamp (MIL) has not been reported on, and there are no DTCs.  - Ignition timing  - Spark plug ...

    Fuel Supply System
    ...

    See also:

    A/C Compressor Clutch Overhaul
    Special Tools Required • A/C Clutch Holder Robinair 10290 or Kent-Moore J37872, commercially available • A/C Clutch Holder Honda Tool and Equipment ACT499A, commercially available 1. Re ...

    Transmission Fluid
    • Continuously Variable Transmission (CVT) Fluid Have a dealer check the fluid level and replace if necessary. NOTICE Do not mix HCF-2 with other transmission fluids. Using a transmission ...

    Frame Brace Replacement
    Strut Brace Replacement 1. Remove the cowl cover (see page 20-278). 2. Disconnect the brake booster vacuum hose (A) from the strut brace (B). 3. Remove the nuts from the top of the damper, and ...