2020 Infiniti QX80 LimitedFACTORY OEM SERVICE PROCEDURE

ENGINE CONTROL SYSTEM : Commercial Service Tools or/and Repair Part

Tool name

(TechMate No.)

Description

Leak detector

i.e.: (J-41416)

GNSSNT703-703Courtesy of NISSAN NORTH AMERICA, INC.

Locates the EVAP leak

EVAP service port adapter

i.e.: (J-41413-OBD)

GNSSNT704-704Courtesy of NISSAN NORTH AMERICA, INC.

Applies positive pressure through EVAP service port

Fuel filler cap adapter

i.e.: (J-42909)

GNSALBIA1353Z-353Courtesy of NISSAN NORTH AMERICA, INC.

Checks fuel tank vacuum relief valve opening pressure

Socket wrench

GNSSNT705-705Courtesy of NISSAN NORTH AMERICA, INC.

Removes and installs engine coolant temperature sensor

Oxygen sensor thread cleaner

i.e.: (J-43897-18)

(J-43897-12)

GNSAEM488-488Courtesy of NISSAN NORTH AMERICA, INC.

Reconditions the exhaust system threads before installing a new oxygen sensor. Use with anti-seize lubricant shown below.

a: 18 mm diameter with pitch 1.5 mm for Zirconia Oxygen SensorΒ 

b: 12 mm diameter with pitch 1.25 mm for Titania Oxygen SensorΒ 

Anti-seize lubricant i.e.: (Permatex TM 133AR or equivalent meeting MIL specification MIL-A-907)

GNSSNT779-779Courtesy of NISSAN NORTH AMERICA, INC.

Lubricates oxygen sensor thread cleaning tool when reconditioning exhaust system threads.

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.