HOW TO: Nissan Infiniti Throttle Relearn/ Calibration Instruction

HOW TO Nissan Infiniti Throttle Relearn Calibration Instruction

HOW TO?

Resetting The Throttle Body Calibration

A Rough Idle or a SES can sometimes be caused by a change in the throttle body position sensor calibration. To correct any accidental changes in throttle body calibration, use these procedures to recalibrate.

Note: These procedures are a little tricky to do. You must get the timing just right Use a stop watch to help the precision of your timing.

 

HOW TO: Accelerator Pedal Release Position Learning Procedure.

  1. Make sure that the accelerator pedal is fully released.
  2. Turn ignition switch “ON” and wait at least 2 seconds.
  3. Turn ignition switch “OFF” wait at least 10 seconds.
  4. Turn ignition switch “ON” and wait at least 2 seconds.
  5. Turn ignition switch “OFF” wait at least 10 seconds.

 

HOW TO: Throttle Valve Closed Position Learning

  1.  Make sure that accelerator pedal is fully released:
  2.  Turn ignition switch is “ON”.
  3.  Turn ignition switch is “OFF’ wait at least 10 seconds.

Make sure that the throttle valve moves during above 10 seconds by confirming the operating sound.

 

HOW TO: Idle Air Volume Learning (Throttle Position Learning)

It’s best to time with a watch/clock.

  1. Perform “Accelerator Pedal Released Position Learning”.
  2. Perform “Throttle Valve Closed Position Learning”.
  3. Start engine and warm it up to normal operating temperature.
  4. Turn ignition switch “OFF” and wait at least 10 seconds.
  5. Conform that accelerator pedal is fully released, turn ignition switch “ON” and wait 3 seconds.
  6. Repeat the following (steps 7, 8) procedures quickly five times within 5 seconds.
  7. Fully depress the accelerator pedal (HARD)
  8. Fully release the accelerator pedal.
  9. Wait 7 seconds, fully depress the accelerator pedal and keep it for approx. 20 seconds until the Check Engine Lig(CEL) stops blinking and turned ON.
  10. Fully release the accelerator pedal within 3 seconds after the CEL is ON.
  11. Start engine and let it idle.
  12. Wait 20 seconds.
  13. Rev up the engine two or three times and make sure the idle speed and ignition timing are within the specification.