2024 Infiniti QX55 EssentialFACTORY OEM SERVICE PROCEDURE

Normal Operating Condition: Description

FUEL CUT CONTROL (AT NO LOAD AND HIGH ENGINE SPEED)Β 

If the status of that the engine speed is above 2, 500 rpm under no load (at 0 km/h and the selector lever position is P or N) takes more than the specified time, fuel will be cut off after some time. The exact time when the fuel is cut off varies based on engine speed. Fuel cut will be operated until the engine speed falls below 2, 000 rpm.

NOTE: SYMBOL This function is different from deceleration control listed under direct and port fuel injection system, System Description .

Fuel cut when the accelerator pedal is fully depressed.Β 

When starts the engine with fully depressing the accelerator pedal, in order to eliminate the spark plug fouling, performs fuel cut while cranking and prevent the engine from starting. The fuel cut continues until the accelerator pedal is released.

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:

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