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Home >> Acura >> 2004 >> RSX Base, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Idle Control System >> ECM/PCM Idle Learn Procedure >> Procedure

ECM/PCM Idle Learn Procedure: Procedure

  1. Start the engine. Hold the engine speed at 3,000 RPM without load (in park or neutral) until the radiator fan comes on, or until the engine coolant temperature reaches 194°F (90°C).
  2. 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.


  1. Make sure all electrical items (A/C, audio, rear window defogger, lights, etc.) are off.
  2. Reset the ECM/PCM with the HDS.
  3. Turn the ignition switch ON (II), and wait 2 seconds.
  4. Start the engine. Hold the engine speed at 3,000 RPM without load (in Park or neutral) until the radiator fan comes on, or until the engine coolant temperature reaches 194°F (90°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.
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