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2008-2011 Infiniti G37 Coupe Idle Air Volume Learning Procedure

2008-2011 Infiniti G37 Coupe Idle Air Volume Learning Procedure

Models:
  • 2008 G37 Coupe
  • 2009 G37 Coupe
  • 2010 G37 Coupe
  • 2011 G37 Coupe

Idle Air Volume Learning is an operation to learn the idle air volume that keeps each engine within the specific range. It must be performed under any of the following conditions:

  • Each time electric throttle control actuator or ECM is replaced.
  • Idle speed or ignition timing is out of specification.

Instructions

Preparation

Before performing Idle Air Volume Learning, make sure that all of the following conditions are satisfied. Learning will be cancelled if any of the following conditions are missed for even a moment.

  • Battery voltage: More than 12.9V (At idle)
  • Engine coolant temperature: 70 - 100 C (158 - 212 F)
  • Park/neutral position (PNP) switch: ON (Shifter in Park or Neutral)
  • Electric load switch: OFF (Air conditioner, headlamp, rear window defogger)
  • Steering wheel: Neutral (Straight-ahead position)
  • Vehicle speed: Stopped
  • Transmission: Warmed-up (Drive vehicle for 10 minutes.)

Procedure

  • 1
  • 2
  • 3
    Start engine and warm it up to normal operating temperature.
  • 4
    Check that all items listed under the topic PREPARATION (previously mentioned) are in good order.
  • 5
    Turn ignition switch OFF and wait at least 10 seconds.
  • 6
    Confirm that accelerator pedal is fully released, turn ignition switch ON and wait 3 seconds.
  • 7
    Repeat the following procedure quickly five times within 5 seconds.
  • a
    Fully depress the accelerator pedal.
  • 8
    Wait 7 seconds, fully depress the accelerator pedal and keep it for approx. 20 seconds until the MIL stops blinking and turned ON.
  • 9
    Fully release the accelerator pedal within 3 seconds after the MIL turned ON.
  • 10
    Start engine and let it idle.
  • 11
    Wait 20 seconds.
  • Infiniti Engine Idle
  • 12
    Rev up the engine two or three times and make sure that idle speed and ignition timing are within the specifications.
  • Idle speed = 650 ± 50 rpm (in P or N position)
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