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.
2003 Nissan-Datsun Sentra SE-R, AutomaticFACTORY OEM SERVICE PROCEDURE
Learning Procedure (With CONSULT-II)
- Perform ACCELERATOR PEDAL RELEASED POSITION LEARNING PROCEDURE .
- Perform THROTTLE VALVE CLOSED POSITION LEARNING PROCEDURE .
- Start engine and warm it up 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.
- Make sure 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 make sure that idle speed and ignition timing are within the specifications. See IDLE SPEED & IGNITION TIMING SPECIFICATIONS table.
IDLE SPEED & IGNITION TIMING SPECIFICATIONS
| Item | Specification | |||
|---|---|---|---|---|
| Idle Speed | ||||
| A/T (1) | 650-750 RPM | |||
| M/T | 650-750 RPM | |||
| Ignition Timing | ||||
| A/T (1) | 10-20° BTDC | |||
| M/T | 10-20° BTDC | |||
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Factory Service Tools
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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.
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