Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSNISSAN-DATSUN2004ALTIMA S, AUTOMATICREPAIR AND DIAGNOSIS (SINGLE PAGE)GENERAL INFORMATIONCOMPUTER RELEARN PROCEDURESINTRODUCTIONIDLE AIR VOLUME LEARNINGPROCEDURE - WITH CONSULT-II
2004 Nissan-Datsun Altima S, Automatic
Procedure - With Consult-II
2004 Nissan-Datsun Altima S, AutomaticSECTION Procedure - With Consult-II
- Perform accelerator pedal released position learning, see ACCELERATOR PEDAL RELEASED POSITION LEARNING .
- Perform throttle valve closed position learning, see THROTTLE VALVE CLOSED POSITION LEARNING .
- Start engine and warm to normal operating temperature.
- Check that all items listed under PREPARATION are in good order.
- Select "IDLE AIR VOL LEARN" in "WORK SUPPORT" mode.
- Touch "START" and wait 20 seconds.
- Ensure that "CMPLT" is displayed on CONSULT-II screen. If "CMPLT" is not displayed, idle air volume learning will not be carried out successfully. In this case, find the cause of the incident by referring to DIAGNOSTIC PROCEDURE .
- Rev up the engine 2 or 3 times and ensure that idle speed and ignition timing are within specifications, see Fig 1.
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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.