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Essential Tools: Fuel Pressure Adapter J-44321-6 And Fuel Line Quick Connector Release Tool J-45488 (NTB02-059A)

WARNING: This page is about the Sentra Base, Automatic, which is a different variant/trim than selected.
Publication date: 2003-08-08
Reference number: NTB02-059A
Supersedes refnos: NTB02-059

ESSENTIAL TOOLS: FUEL PRESSURE ADAPTER J-44321-6 AND FUEL LINE QUICK CONNECTOR RELEASE TOOL J-45488

ESSENTIAL TOOLS: FUEL PRESSURE ADAPTER J-44321-6 AND FUEL LINE QUICK CONNECTOR RELEASE TOOL J-45488

TECHNICAL SERVICE BULLETIN

Reference Number(s): NTB02-059A, Date of Issue:  August 8, 2003
NISSAN: 2002-2003 Altima; 2000-2004 Sentra; 2004 Maxima, Quest
CLASSIFICATION: TE02-008A
SECTION: Tools and Equipment
APPLIED VEHICLE(S): 2002-2003 Altima (L31), with QR25DE engine; 2002-2004 Sentra (B15), with QR25DE engine; 2000-2002 Sentra CA (Clean Air) (B15), with QG18DE engine; 2003-2004 Sentra (B15), with QG18DE engine; 2004 Maxima (A34), Quest (V42)
Superceded Bulletin(s): NTB02-059, Date of Issue:  May 21, 2002
NOTE: The tools covered in this bulletin are not new, they were previously shipped to each dealer. This bulletin updates the Applied Vehicles and amends the Service Procedure of NTB02-059. Please discard all paper copies of previous versions.

SERVICE INFORMATION

If the fuel pressure on an applied vehicle needs to be checked; use the following tools which are Nissan essential tools in your inventory:

The Service Procedure provides fuel pressure gauge connecting instructions for each Applied Vehicle.

NOTE:
  • Two J-45488 Quick Connector Release tools were sent to each dealer. It is recommended that one be stored with the Fuel Pressure Gauge Kit (J-44321) and the other in the Special Tool Storage System (STSS) drawer #5.
  • It is recommended that adapter J-44321-6 be stored with the Fuel Pressure Gauge Kit (J-44321).
  • The black plastic lock ring may fall out of the adapter end. If it is lost, use Quick Connector Release tool J-45488 to remove adapter from the vehicle fuel line.
Fig 1: Fuel Pressure Gauge Adapter & Quick Connector Release
G00282198
Fig 2: Fuel Pressure Gauge Kit J-44321
G00282199
NOTE: Additional tools (including individual kit items) can be ordered from TECH-MATE.

PARTS INFORMATION

PARTS INFORMATION

Description Part Number Quantity
Canopus 13 Mineral Oil 999MP-AJ001P As needed
NOTE: Chemical products, including Canopus 13 Mineral Oil, are to be ordered through the "Nissan Direct Ship Chemical Care Product Program".

SERVICE PROCEDURE

FUEL PRESSURE GAUGE CONNECTION FOR

2002-2003 Altima with QR25DE Engine 

2003-2004 Sentra with QR25DE Engine 

  1. Release the fuel pressure from the fuel system.
  2. Remove the plastic engine cover (see Fig 3 ).
    Fig 3: Removing Plastic Engine Cover
    G00282200
  3. Disconnect the Positive Crankcase Ventilation (PCV) hose from the cam cover (see Fig 4 ).
    Fig 4: Disconnecting PCV Hose From Cam Cover
    G00282201
  4. Remove the plastic lock from the fuel line quick connector by pulling it to the side (see Fig 5 ).
    Fig 5: Removing Plastic Lock From Fuel Line Quick Connector ('02-03 Altima, '03-04 Sentra)
    G00282202
  5. Remove the fuel line using the fuel line quick connector release tool J-45488.
    • Insert the quick connector release tool into the base of the quick connector and lift it upward. You should feel it snap into place (see Fig 6 ).
    • Lift/pull up on the fuel line to disconnect it (see Fig 6 ).
    Fig 6: Removing Fuel Line w/Release Tool ('02-03 Altima, '03-04 Sentra)
    G00282203
  6. Install the fuel pressure gauge adapter J44321-6.
    • Connect the adapter end (with the black plastic lock ring) to the engine's fuel rail tube. Push it down until it snaps (locks) into place (see Fig 7 ).
    • Insert the other end of the adapter into the fuel line you removed (see Fig 7 ).
    CAUTION: Be careful NOT to distort or bend the fuel rail tube when installing the fuel pressure gauge adapter.
    Fig 7: Installing Fuel Pressure Gauge Adapter ('02-03 Altima, '03-04 Sentra)
    G00282204
  7. Make sure the fuel pressure gauge hose is securely connected to adapter J-44321-6 (see Fig 7 ).
  8. Perform the fuel pressure test.

    Remove Fuel Pressure Gauge Adapter. 

  9. Release the fuel pressure from the fuel system. Refer to the FUEL PRESSURE RELEASE PROCEDURE  .
  10. Disconnect the fuel pressure gauge adapter (see Fig 8 ).
    • First, lift up on the black plastic lock ring
    • Then, pull up on the hose portion of the adapter.
    Fig 8: Disconnecting Fuel Pressure Gauge Adapter ('02-03 Altima, '03-04 Sentra)
    G00282205
  11. Disconnect the other end of the fuel pressure gauge adapter from the fuel line.
    • This is done in the same way as releasing the fuel line from the fuel rail. See step 5.
    • You'll use the same quick connector release tool.
  12. Lubricate the O-ring, located inside the fuel line quick connector, with Canopus 13 Mineral Oil (PN 999MP-AJ001P).
  13. Re-install the fuel line to the fuel rail tube
    • Make sure the quick connector is fully seated and locked (snapped) into place.
  14. Re-install the plastic lock over the quick connector.
  15. Re-connect the PCV hose to the cam cover.
  16. Operate the fuel system and confirm there are NO fuel leaks.
  17. Re-install the top plastic engine cover and securing bolts.

FUEL PRESSURE GAUGE CONNECTION FOR

2000-2002 Sentra CA (Clean Air) with QG18DE engine 

2003-2004 Sentra with QG18DE engine 

  1. Release the fuel pressure from the fuel system.
  2. Remove the bolt that secures the fuel line (see Fig 9 ).
    Fig 9: Removing Fuel Line Bolt
    G00282206
  3. Remove the fuel line using the fuel line quick connector release tool J-45488.
    • Insert the quick connector release tool into the end of the quick connector. You should feel it snap into place (see Fig 10 ).
    • Pull the fuel line towards the driver's side of the vehicle to disconnect it (see Fig 10 )
    Fig 10: Removing Fuel Line Using Release Tool ('00-04 Sentra)
    G00282207
  4. Install the fuel pressure gauge adapter.
    • Connect the adapter end (with the black plastic lock ring) to the engine's fuel rail tube. Push it until it snaps (locks) into place (see Fig 11 ).
    • Insert the other end of the adapter into the fuel line you removed (see Fig 11 ).
    CAUTION: Be careful NOT to distort or bend the fuel rail tube when installing the fuel pressure gauge adapter.
    Fig 11: Installing Fuel Pressure Gauge Adapter ('00-04 Sentra)
    G00282208
  5. Make sure the fuel pressure gauge hose is securely connected to adapter J-44321-6. See Fig 11 .
  6. Perform the fuel pressure test.

    Remove the Fuel Pressure Gauge Adapter 

  7. Release the fuel pressure from the fuel system.
  8. Disconnect the fuel pressure gauge adapter from the fuel rail tube (see Fig 12 ).
    • First, push on the black plastic lock ring.
    • Then, pull the hose portion of the adapter towards the drivers side of the vehicle.
    Fig 12: Disconnecting Fuel Pressure Gauge Adapter From Fuel Rail Tube ('04 Sentra)
    G00282209
  9. Disconnect the other end of the fuel pressure gauge adapter from the fuel line.
    • This is done in the same way as releasing the fuel line from the fuel rail. See step 3.
    • You'll use the same quick connector release tool
  10. Lubricate the O-ring, located inside the fuel line quick connector, with Canopus 13 Mineral Oil (PN 999MP-AJ001P).
  11. Re-install the fuel line to the fuel rail tube, making sure the quick connector is fully seated and locked into position.
  12. Operate the fuel system and confirm there are NO fuel leaks.

FUEL PRESSURE GAUGE CONNECTION FOR

2004 Maxima 

  1. Release the fuel pressure from the fuel system.
  2. Locate the fuel line at the left (driver's) side of the engine (see Fig 13 ).
    Fig 13: Fuel Line Location ('04 Maxima)
    G00282210
  3. Remove the plastic lock from the fuel line quick connector (see Fig 14 ).
    Fig 14: Removing Plastic Lock From Fuel Line Quick Connector ('04 Maxima, Quest)
    G00282211
  4. Remove the fuel line using the fuel line quick connector release tool J-45488.
    • Insert the quick connector release tool into the end of the quick connector. You should feel it snap into place (see Fig 15 ).
      Fig 15: Removing Fuel Line Using Release Tool ('04 Maxima, Quest)
      G00282212
    • Pull the fuel line towards the driver's side of the vehicle to disconnect it (see Fig 16 ).
    NOTE: Make sure to remove the shop towel (rag) used to catch fuel drips when procedure is complete.
    Fig 16: Pulling Fuel Line Towards Driver's Side of Vehicle ('04 Maxima, Quest)
    G00282213
  5. Install the fuel pressure gauge adapter (see Fig 17 ).
    • Connect the adapter end (with the black plastic lock ring) to the engine's fuel rail tube. Push it until it snaps (locks) into place
    • Insert the other end of the adapter into the fuel line you removed.
    Fig 17: Installing Fuel Pressure Gauge Adapter ('04 Maxima)
    G00282214
    CAUTION: Be careful NOT to distort or bend the fuel rail tube when installing the fuel pressure gauge adapter.
  6. Make sure the fuel pressure gauge hose is securely connected to adapter J-44321-6.
    Fig 18: Fuel Pressure Gauge Hose Connected to Adapter ('04 Maxima)
    G00282215
  7. Perform the fuel pressure test.

    Remove the Fuel Pressure Gauge Adapter 

  8. Release the fuel pressure from the fuel system.
  9. Disconnect the fuel pressure gauge adapter (see Fig 19 ).
    • First, push on the black plastic lock ring.
    • Then, pull the hose portion of the adapter towards the drivers side of the vehicle.
    • Disconnect the other end of the adapter from the fuel line using the fuel line quick connector release tool (J-45488).
    Fig 19: Disconnecting Fuel Pressure Gauge Adapter ('04 Maxima, Quest)
    G00282216
  10. Lubricate the O-ring, located inside the fuel line quick connector, with Canopus 13 Mineral Oil (PN 999MP-AJ001P).
  11. Re-install the fuel line to the fuel rail tube, making sure the quick connector is fully seated and locked into position.
  12. Re-install the plastic lock over the quick connector (see Fig 14 ).
  13. Operate the fuel system and confirm there are NO fuel leaks.

FUEL PRESSURE GAUGE CONNECTION FOR

2004 Quest 

  1. Release the fuel pressure from the fuel system.
  2. Locate the fuel line at the left (driver's) side of the engine (see Fig 20 ).
    Fig 20: Fuel Line Location ('04 Quest)
    G00282217
  3. Remove the plastic lock from the fuel line quick connector (see Fig 14 ).
  4. Remove the fuel line using the fuel line quick connector release tool J-45488.
    • Insert the quick connector release tool into the end of the quick connector. You should feel it snap into place (see Fig 15 ).
    • Pull the fuel line towards the driver's side of the vehicle to disconnect it (see Fig 16 ).
    NOTE: Make sure to remove the shop towel (rag) used to catch fuel drips when procedure is complete.
  5. Install the fuel pressure gauge adapter J-44321-6 (see Fig 21 ).
    • Route the adapter hose end (with the black plastic lock ring) under the air intake resonators.
    • Push it onto the engine's fuel rail tube until it snaps (locks) into place.
      Fig 21: Installing Fuel Pressure Gauge Adapter ('04 Quest)
      G00282218
    • Insert the other end of the adapter into the fuel line you removed (see Fig 22 ).
      Fig 22: Inserting Adapter End into Fuel Line
      G00282219
    CAUTION: Be careful NOT to distort or bend the fuel rail tube when installing the fuel pressure gauge adapter.
  6. Make sure the fuel pressure gauge hose is securely connected to adapter J-44321-6.
    Fig 23: Fuel Pressure Gauge Hose Connected to Adapter ('04 Quest)
    G00282220
  7. Perform the fuel pressure test.

    Remove the Fuel Pressure Gauge Adapter 

  8. Release the fuel pressure from the fuel system.
  9. Disconnect the fuel pressure gauge adapter (see Fig 19 ).
    • First, push on the black plastic lock ring.
    • Then, pull the hose portion of the adapter towards the drivers side of he vehicle.
    • Disconnect the other end of the adapter from the fuel line using the fuel line quick connector release tool (J-45488).
  10. Lubricate the O-ring, located inside the fuel line quick connector, with Canopus 13 Mineral Oil (PN 999MP-AJ001P).
  11. Re-install the fuel line to the fuel rail tube, making sure the quick connector is fully seated and locked into position.
  12. Reinstall the plastic lock over the quick connector (see Fig 14 )
  13. Operate the fuel system and confirm there are NO fuel leaks.

FUEL PRESSURE RELEASE PROCEDURE

With CONSULT-II

  1. Connect CONSULT-II to the vehicle
  2. Turn the ignition switch "ON".
  3. Perform the "Fuel Pressure Release" function in the "Work Support Mode".
  4. Start the engine and let it run until it stalls.
  5. Crank the engine two or three times to release all fuel pressure.
  6. Turn the ignition switch "OFF".

Without CONSULT-II

  1. Remove the fuel pump fuse from the fuse box.
  2. Start the engine and let it run until it stalls.
  3. Crank the engine two or three times to release all fuel pressure.
  4. Turn the ignition switch "OFF".
  5. Re-install the fuel pump fuse AFTER connecting the fuel pressure gauge.
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