LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Infiniti >> 2004 >> Q45 >> Repair and Diagnosis >> Engine Performance >> Engine Control System >> Basic Service Procedure >> Fuel Pressure Check >> Fuel Pressure Release
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Fuel Pressure Release

With CONSULT-II 

  1. Turn ignition switch ON.
  2. Perform "FUEL PRESSURE RELEASE" in "WORK SUPPORT" mode with CONSULT-II
  3. Start engine.
  4. After engine stalls, crank it two or three times to release all fuel pressure.
  5. Turn ignition switch OFF.
Fig 1: View Of CONSULT-II Screen
G00744990Courtesy of NISSAN MOTOR CO., U.S.A.

Without CONSULT-II 

  1. Remove fuel pump fuse located in fuse box.
  2. Start engine.
  3. After engine stalls, crank it two or three times to release all fuel pressure.
  4. Turn ignition switch OFF.
  5. Reinstall fuel pump fuse after servicing fuel system.
Fig 2: Locating Fuel Pump Fuse
G00744991Courtesy of NISSAN MOTOR CO., U.S.A.