PRECAUTION
CAUTION:
BEFORE WORKING ON FUEL SYSTEM
(a) Before inspecting and repairing the fuel system, disconnect the cable from the negative (-) battery terminal.
NOTICE:
After turning the engine switch off, waiting time may be required before disconnecting the cable from the negative (-) battery terminal. Therefore, make sure to read the disconnecting the cable from the negative (-) battery terminal notices before proceeding with work.
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(b) Do not smoke or work near fire when handling the fuel system.
(c) Keep fuel away from rubber or leather parts.
DISCHARGE FUEL SYSTEM PRESSURE
CAUTION:
(a) When discharging fuel system pressure by disconnecting the FUEL PMP relay:
(1) Remove the No. 1 engine room relay block and No. 1 junction block assembly cover.
(2) Remove the FUEL PMP relay.
(3) Remove the V-bank cover sub-assembly.
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(4) Disconnect the No. 6 engine wire connector and No. 7 engine wire connector.
(5) Start the engine. After the engine has stopped on its own, turn the engine switch off.
NOTICE:
Do not increase the engine speed or drive the vehicle while waiting for the engine to stop on its own.
(6) Crank the engine again and make sure that the engine does not start.
HINT:
DTC P008700 (Fuel Rail / System Pressure - Too Low), P017100/P017400 (System Too Lean), P160300 (Engine Stall History), P160400 (Startability Malfunction) or P160500 (Rough Idling) may be stored. Clear the DTCs before proceeding to the next step.
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(7) Remove the fuel tank cap assembly and discharge the pressure from the fuel tank assembly.
(8) Disconnect the cable from the negative (-) battery terminal.
NOTICE:
When disconnecting the cable, some systems need to be initialized after the cable is reconnected.
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(9) Connect the No. 6 engine wire connector and No. 7 engine wire connector.
(10) Install the V-bank cover sub-assembly.
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(11) Install the FUEL PMP relay.
(12) Install the No. 1 engine room relay block and No. 1 junction block assembly cover.
(b) When discharging fuel system pressure by disconnecting the fuel pump connector:
(1) Disconnect the fuel pump connector.
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(2) Remove the V-bank cover sub-assembly.
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(3) Disconnect the No. 6 engine wire connector and No. 7 engine wire connector.
(4) Start the engine. After the engine has stopped on its own, turn the engine switch off.
NOTICE:
Do not increase the engine speed or drive the vehicle while waiting for the engine to stop on its own.
(5) Crank the engine again and make sure that the engine does not start.
HINT:
DTC P008700 (Fuel Rail / System Pressure - Too Low), P017100/P017400 (System Too Lean), P160300 (Engine Stall History), P160400 (Startability Malfunction) or P160500 (Rough Idling) may be stored. Clear the DTCs before proceeding to the next step.
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(6) Remove the fuel tank cap assembly and discharge the pressure from the fuel tank assembly.
(7) Disconnect the cable from the negative (-) battery terminal.
NOTICE:
When disconnecting the cable, some systems need to be initialized after the cable is reconnected.
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(8) Connect the No. 6 engine wire connector and No. 7 engine wire connector.
(9) Install the V-bank cover sub-assembly.
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(10) Connect the fuel pump connector.
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FUEL LINE
(a) When disconnecting a high-pressure fuel line, a large amount of fuel will spray. Perform the following procedure:
(1) Discharge fuel system pressure.
(2) Disconnect the fuel tube.
(3) Drain the fuel remaining inside the fuel pump tube into a container.
(4) Cover the disconnected fuel pipe and fuel tube connector with plastic bags to prevent damage and contamination.
(b) Quick Type A:
Perform the following procedure when disconnecting a fuel tube connector.
NOTICE:
Remove any foreign matter on the fuel tube connector and fuel pipe before performing this work.
(1) Remove the No. 2 fuel pipe clamp from the fuel tube connector.
(2) Check that there is no foreign matter around the fuel tube connector before disconnecting it. Clean it if necessary.
(3) While holding the retainer at the positions shown in the illustration, pull up the retainer to disengage the lock claws.
*a | Retainer |
Retainer Holding Position | |
Pull out |
HINT:
If the lock claws of the retainer are difficult to disengage, disengage them using a screwdriver with its tip wrapped with protective tape.
*a | Retainer |
*b | Protective Tape |
(4) Pull up the retainer while holding it at the positions shown in the illustration and pull off the fuel tube connector.
*a | Retainer |
*b | O-ring |
*c | Fuel Tube Connector |
*d | Nylon Tube |
*e | Fuel Pipe |
Retainer Holding Position | |
Pull out | |
Pull off |
(5) If the fuel tube connector and fuel pipe are stuck, push and pull the fuel tube connector to release it. Pull the fuel tube connector off of the fuel pipe carefully.
NOTICE:
(6) Check that there is no foreign matter on the sealing surfaces of the disconnected fuel lines. Clean them if necessary.
(7) Cover the disconnected fuel pipe and fuel tube connector with plastic bags to prevent damage and contamination.
(c) Quick Type A:
Perform the following procedure when connecting a fuel tube connector.
NOTICE:
Check that there is no damage or foreign matter on the connecting parts of the fuel lines.
(1) Align the fuel tube connector with the fuel pipe, push the fuel tube connector onto the fuel pipe, then push in the retainer to secure the connection.
*a | Retainer |
Push | |
Push in |
NOTICE:
Confirm that the retainer makes a "click" sound when pushed.
HINT:
If it is difficult to push the fuel tube connector onto the fuel pipe, apply a small amount of clean gasoline to the tip of the fuel pipe.
(2) After connecting the fuel lines, check that the fuel pipe and fuel tube connector are securely connected by pulling on them.
(3) Install the No. 2 fuel pipe clamp to the fuel tube connector.
(4) Inspect for fuel leaks.
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(d) Quick Type B:
Perform the following procedure when disconnecting a fuel tube connector.
NOTICE:
Remove any foreign matter on the fuel tube connector and fuel pipe before performing this work.
(1) Disengage the 2 claws of the retainer. Pull out the retainer and disconnect the fuel tube connector from the fuel pipe.
*a | Retainer |
*b | Fuel Pipe |
*c | Nylon Tube |
*d | Fuel Tube Connector |
*e | O-ring |
*f | Claw |
Push | |
Pull out | |
Pull off |
NOTICE:
Be sure to disconnect the fuel tube connector by hand.
(2) If the fuel tube connector and fuel pipe are stuck, push and pull the fuel tube connector to release it. Pull the fuel tube connector off of the fuel pipe carefully.
NOTICE:
(3) Check that there is no foreign matter on the sealing surfaces of the disconnected fuel lines. Clean them if necessary.
(4) Cover the disconnected fuel pipe and fuel tube connector with plastic bags to prevent damage and contamination.
(e) Quick Type B:
Perform the following procedure when connecting a fuel tube connector.
NOTICE:
Check that there is no damage or foreign matter on the connecting parts of the fuel lines.
(1) Align the fuel tube connector with the fuel pipe, push the fuel tube connector onto the fuel pipe, then push in the retainer to engage the 2 claws.
*a | Retainer |
*b | Claw |
Push | |
Push in |
NOTICE:
Confirm that the retainer makes a "click" sound when pushed.
HINT:
If it is difficult to push the fuel tube connector onto the fuel pipe, apply a small amount of clean gasoline to the tip of the fuel pipe.
(2) After connecting the fuel lines, check that the fuel pipe and fuel tube connector are securely connected by pulling on them.
(3) Inspect for fuel leaks.
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(f) Quick Type C:
Perform the following procedure when disconnecting a fuel tube connector.
NOTICE:
Remove any foreign matter on the fuel tube connector and fuel pipe before performing this work.
(1) Disengage the 2 claws of the retainer. Pull out the retainer and disconnect the fuel tube connector from the fuel pipe.
*a | Retainer |
*b | Fuel Pipe |
*c | Fuel Tube Connector |
*d | O-ring |
*e | Claw |
Push | |
Pull out | |
Pull off |
NOTICE:
Be sure to disconnect the fuel tube connector by hand.
(2) If the fuel tube connector and fuel pipe are stuck, push and pull the fuel tube connector to release it. Pull the fuel tube connector off of the fuel pipe carefully.
NOTICE:
(3) Check that there is no foreign matter on the sealing surfaces of the disconnected fuel lines. Clean them if necessary.
(4) Cover the disconnected fuel pipe and fuel tube connector with plastic bags to prevent damage and contamination.
(g) Quick Type C:
Perform the following procedure when connecting a fuel tube connector.
NOTICE:
Check that there is no damage or foreign matter on the connecting parts of the fuel lines.
(1) Align the fuel tube connector with the fuel pipe, push the fuel tube connector onto the fuel pipe, then push in the retainer to engage the 2 claws.
*a | Retainer |
*b | Claw |
Push | |
Push in |
NOTICE:
Confirm that the retainer makes a "click" sound when pushed.
HINT:
If it is difficult to push the fuel tube connector onto the fuel pipe, apply a small amount of clean gasoline to the tip of the fuel pipe.
(2) After connecting the fuel lines, check that the fuel pipe and fuel tube connector are securely connected by pulling on them.
(3) Inspect for fuel leaks.
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(h) Observe the following precautions when handling a nylon tube:
NOTICE:
*a | Fuel Tube Connector |
*b | Nylon Tube |
*c | Ethylene Propylene Diene Monomer (EPDM) Rubber Protector |
FUEL SUCTION TUBE WITH PUMP AND GAUGE ASSEMBLY
NOTICE:
*A | for TMC Made |
*B | for TMMC Made |
*a | Tube |
INSPECT FOR FUEL LEAK
(a) Check that there are no fuel leaks from the fuel system after doing any maintenance or repairs.
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