BEFORE WORKING ON FUEL SYSTEM
Before inspecting and repairing the fuel system, disconnect the cable from the negative (-) auxiliary battery terminal.
Note
After turning the power switch off, waiting time may be required before disconnecting the cable from the negative (-) auxiliary battery terminal. Therefore, make sure to read the disconnecting the cable from the negative (-) auxiliary battery terminal notice before proceeding with work Click here.
Do not smoke or work near fire when handling the fuel system.
Keep fuel away from rubber or leather parts.
DISCHARGE FUEL SYSTEM PRESSURE
CAUTION:
Make sure the engine coolant temperature is 60°C (140°F) or less when performing this procedure.
Do not disconnect any part of the fuel system until you have discharged the fuel system pressure.
Pressure will still remain in the fuel lines even after performing the following procedure. When disconnecting a fuel line, cover it with a piece of cloth to prevent fuel from spraying or coming out.
When discharging fuel system pressure by disconnecting the FUEL PUMP (25A) fuse:
Remove the No. 1 engine room relay block and No. 1 junction block assembly cover.
| *1 | FUEL PUMP (25A) Fuse |
Remove the FUEL PUMP (25A) fuse.
Put the engine in inspection mode (maintenance mode) Click here.
Start the engine.
After the engine has stopped on its own, turn the power switch off.
Note
Do not increase the engine speed or drive the vehicle while waiting for the engine to stop on its own.
Crank the engine again and make sure that the engine does not start.
Tech Tips
DTC P0087 (Fuel Rail / System Pressure - Too Low), P0171 (System Too Lean), P1604 (Startability Malfunction), P1605 (Rough Idling), P3190 (Poor Engine Power), P3191 (Engine does not Start) or P3193 (Fuel Run Out) may be stored. Clear the DTCs before proceeding to the next step.
w/ EGR System Click here
w/o EGR System Click here
Hybrid control system Click here
Remove the fuel tank cap assembly and discharge the pressure from the fuel tank assembly.
Disconnect the cable from the negative (-) auxiliary battery terminal.
Note
When disconnecting the cable, some systems need to be initialized after the cable is reconnected Click here.
Install the FUEL PUMP (25A) fuse.
Install the No. 1 engine room relay block and No. 1 junction block assembly cover.
When discharging fuel system pressure by disconnecting the fuel pump connector:
Remove the rear seat cushion assembly Click here.
Remove the rear seat cushion lock hook Click here.
Remove the rear floor service hole cover.
Disconnect the fuel pump connector.
Put the engine in inspection mode (maintenance mode) Click here.
Start the engine.
After the engine has stopped on its own, turn the power switch off.
Note
Do not increase the engine speed or drive the vehicle while waiting for the engine to stop on its own.
Crank the engine again and make sure that the engine does not start.
Tech Tips
DTC P0087 (Fuel Rail / System Pressure - Too Low), P0171 (System Too Lean), P1604 (Startability Malfunction), P1605 (Rough Idling), P3190 (Poor Engine Power), P3191 (Engine does not Start) or P3193 (Fuel Run Out) may be stored. Clear the DTCs before proceeding to the next step.
SFI system (w/ EGR System) Click here
SFI system (w/o EGR System) Click here
Hybrid control system Click here
Remove the fuel tank cap assembly and discharge the pressure from the fuel tank assembly.
Disconnect the cable from the negative (-) auxiliary battery terminal.
Note
When disconnecting the cable, some systems need to be initialized after the cable is reconnected Click here.
Connect the fuel pump connector.
Install the rear floor service hole cover with new butyl tape.
Install a new rear seat cushion lock hook Click here.
Install the rear seat cushion assembly Click here.
FUEL SYSTEM
When disconnecting a fuel pressure line, a large amount of gasoline will spill out. Perform the following procedure:
Discharge the fuel system pressure.
Put a container under the connection.
Disconnect the fuel pump tube.
Drain the fuel remaining inside the fuel pump tube into the container.
Cover the disconnected pipe and connector with a plastic bag to prevent damage and contamination.
Perform the following procedure when disconnecting a fuel tube connector (quick type A):
Note
Remove any dirt or foreign matter on the fuel tube connector and fuel pipe before performing this work.
| *1 | Fuel Hose Connector Cover |
|
Pull Off |
Pull off the fuel hose connector cover.
| *1 | Retainer |
|
Pinch |
|
Pull |
Pinch the retainer of the fuel tube connector, and then pull the fuel tube connector off of the fuel pipe.
Note
Be sure to disconnect the fuel tube connector by hand.
| *1 | Retainer |
| *2 | Nylon Tube |
| *3 | Pipe |
| *4 | O-Ring |
| *5 | Fuel Tube Connector |
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.
Note
Be sure to disconnect the fuel tube connector by hand.
Do not allow any scratches or foreign matter to get on the parts when disconnecting them as the fuel tube connector has O-rings that seal the fuel pipe.
Do not forcibly bend, twist or turn the nylon tube.
Check if there is any foreign matter on the sealing surfaces of the disconnected fuel lines. Clean them if necessary.
Cover the disconnected fuel pipe and fuel tube connector with plastic bags to prevent damage and contamination.
Perform the following procedure when connecting a fuel tube connector (quick type A):
Note
Check if there is any damage or foreign matter on the connecting part of the fuel pipe.
Align the fuel tube connector with the fuel pipe, and push them together until the fuel tube connector makes a "click" sound. If it is difficult to push the fuel pipe into the fuel tube connector, apply a small amount of clean engine oil to the tip of the fuel pipe and reinsert it.
|
Push |
After connecting the fuel lines, check that the fuel pipe and fuel tube connector are securely connected by pulling on them.
|
Pull |
Push in the fuel hose connector cover.
Inspect for fuel leaks.
Perform the following procedure when disconnecting a fuel tube connector (quick type B):
Note
Remove any dirt or foreign matter on the fuel tube connector and fuel pipe before performing this work.
| *1 | Retainer |
|
Push |
|
Down |
|
Pull |
Disengage the 2 claws of the retainer. Pull out the retainer and disconnect the fuel tube connector from the fuel pipe.
Note
Be sure to disconnect the fuel tube connector by hand.
| *1 | Fuel Pipe |
| *2 | Retainer |
| *3 | Nylon Tube |
| *4 | Fuel Tube Connector |
| *5 | O-Ring |
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.
Note
Be sure to disconnect the fuel tube connector by hand.
Do not allow any scratches or foreign matter to get on the parts when disconnecting them as the fuel tube connector has O-rings that seal the fuel pipe.
Do not forcibly bend, twist or turn the nylon tube.
Check if there is any foreign matter on the sealing surfaces of the disconnected fuel lines. Clean them if necessary.
Cover the disconnected fuel pipe and fuel tube connector with plastic bags to prevent damage and contamination.
Perform the following procedure when connecting a fuel tube connector (quick type B):
Note
Check if there is any damage or foreign matter on the connecting part of the fuel pipe.
| *1 | Retainer |
|
Push |
|
Push In |
Align the fuel tube connector with the fuel pipe, and push them together until the fuel tube connector makes a "click" sound. If it is difficult to push the fuel pipe into the fuel tube connector, apply a small amount of clean engine oil to the tip of the fuel pipe and reinsert it.
Connect the fuel lines and push in the retainer to engage the 2 claws. Check that the fuel pipe and fuel tube connector are securely connected by pulling on them.
Inspect for fuel leaks.
Perform the following procedure when disconnecting a fuel tube connector (quick type C):
Note
Remove any dirt or foreign matter on the fuel tube connector and fuel pipe before performing this work.
| *1 | Retainer |
|
Push |
|
Pull Out |
|
Pull Off |
Disengage the 2 claws of the retainer. Pull out the retainer and disconnect the fuel tube connector from the fuel pipe.
Note
Be sure to disconnect the fuel tube connector by hand.
| *1 | Retainer |
| *2 | Fuel Tube Connector |
| *3 | O-ring |
| *4 | Fuel Pipe |
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.
Note
Be sure to disconnect the fuel tube connector by hand.
Do not allow any scratches or foreign matter to get on the parts when disconnecting them as the fuel tube connector has an O-ring that seals the fuel pipe.
Check if there is any foreign matter on the sealing surfaces of the disconnected fuel lines. Clean them if necessary.
Cover the disconnected fuel pipe and fuel tube connector with plastic bags to prevent damage and contamination.
Perform the following procedure when connecting the fuel tube connector (quick type C):
Note
Check if there is any damage or foreign matter on the connecting part of the fuel pipe.
Align the fuel tube connector with the fuel pipe, and push them together until the fuel tube connector makes a "click" sound. If it is difficult to push the fuel pipe into the fuel tube connector, apply a small amount of clean engine oil to the tip of the fuel pipe and reinsert it.
| *1 | Retainer |
|
Push |
|
Push In |
Connect the fuel lines and push in the retainer to engage the 2 claws. Check that the fuel pipe and fuel tube connector are securely connected by pulling on them.
Inspect for fuel leaks.
Perform the following procedure when disconnecting a fuel tube connector (metallic type):
Note
Remove any dirt or foreign matter on the fuel tube connector and fuel pipe before performing this work.
Detach the claw to remove the No. 1 fuel pipe clamp (for LHD).
| *a | Claw |
Remove the No. 2 fuel pipe clamp (for RHD).
Install SST (fuel hose puller) to the fuel tube connector as shown in the illustration.
| *1 | Retainer |
Turn SST (fuel hose puller), align the retainers inside the fuel tube connector with the SST (fuel hose puller) chamfers and insert SST (fuel hose puller) into the fuel tube connector.
Mount the retainer of the fuel tube connector onto the chamfered part of SST (fuel hose puller).
| *1 | Fuel Tube Sub-assembly |
| *2 | Retainer |
| *3 | Nylon Tube |
| *4 | O-ring |
| *5 | Fuel Tube Connector |
| *6 | Fuel Pipe |
Slide SST and the fuel tube connector together until they make a "click" sound, and then disconnect the fuel tube sub-assembly.
Note
Do not allow any scratches or foreign matter to get on the parts when disconnecting them as the fuel tube connector has O-rings that seal the fuel pipe.
Do not forcibly bend, twist or turn the nylon tube.
Check if there is any foreign matter on the sealing surfaces of the disconnected fuel lines. Clean them if necessary.
Cover the disconnected fuel pipe and fuel tube connector with plastic bags to prevent damage and contamination.
Perform the following procedure when connecting the fuel tube connector (metallic type):
Note
Check if there is any damage or foreign matter on the connecting part of the fuel pipe.
Align the fuel tube connector with the fuel pipe, and push them together until the fuel tube connector makes a "click" sound. If it is difficult to push the fuel pipe into the fuel tube connector, apply a small amount of clean engine oil to the tip of the fuel pipe and reinsert it.
After connecting the fuel lines, check that the fuel pipe and fuel tube connector are securely connected by pulling on them.
|
Pull |
Attach the claw and install the No. 1 fuel pipe clamp (for LHD).
Install the No. 2 fuel pipe clamp (for RHD).
Inspect for fuel leaks.
| *1 | Fuel Tube Connector |
| *2 | Nylon Tube |
| *3 | Ethylene Propylene Diene Monomer (EPDM) Rubber Protector |
Observe the following precautions when handling the nylon tube:
Note
Do not twist the fuel tube connector part of the nylon tube or fuel tube connector when connecting them.
Do not remove the Ethylene Propylene Diene Monomer (EPDM) rubber protector on the outside of the nylon tube.
Do not pinch or kink the nylon tubes to prevent fuel leaks.
FUEL SUCTION WITH PUMP AND GAUGE TUBE ASSEMBLY
Note
Do not disconnect the tube shown in the illustration when disassembling the fuel suction tube with pump and gauge assembly. Doing so will cause reassembly of the fuel suction tube with pump and gauge assembly to be impossible as the tube is pressed into the fuel suction plate sub-assembly.
When replacing the fuel filter, replace it together with the fuel suction plate sub-assembly.
INSPECT FOR FUEL LEAK
Check that there are no fuel leaks from the fuel system after doing any maintenance or repairs Click here.