SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSACURA2008TSX AUTOMATICREPAIR AND DIAGNOSISENGINE PERFORMANCEENGINE CONTROL SYSTEMSIDLE CONTROL SYSTEMECM/PCM IDLE LEARN PROCEDURE
2008 Acura TSX Automatic

ECM/PCM Idle Learn Procedure

2008 Acura TSX AutomaticSECTION 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 the ECM/PCM.
  • Reset the ECM/PCM.
  • Update the ECM/PCM.
  • Replace or clean the throttle body.
NOTE: Clearing the 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 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.
RENDER: 1.0x

NO RELATED

Recommended Tools & Savings

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

Affiliate disclosure: We may earn a commission at no extra cost to you.

Shop Manual-Ready ToolsFree Quote CheckQuote Shield Pro

When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.