Fuel, TOYOTA-Instrukcje, Naprawa Toyota Yaris full, 2007 Toyota Yaris Repair Manual
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1NZ-FE FUEL
– FUEL SYSTEM
FU–1
FUEL SYSTEM
PRECAUTION
1. PRECAUTIONS
(a) Before working on the fuel system, disconnect the
cable from the negative battery terminal.
(b) Do not work on the fuel system near any naked
flames. Never smoke during the work.
(c) Keep rubber and leather parts away from gasoline.
2. DISCHARGE FUEL SYSTEM PRESSURE
CAUTION:
• Before removing any fuel system parts, take
precautions to prevent gasoline spillage.
• As some pressure remains in the fuel line even
after taking precautions to prevent gasoline
spillage, use a shop rag or piece of cloth to
prevent gasoline splashes when disconnecting
the fuel line.
(a) Remove the rear seat cushion (for Hatchback) (See
page
SE-114
).
(b) Remove the rear seat assembly (for Hatchback)
(See page
SE-70
).
(c) Remove the rear seat cushion (for Sedan) (See
page
SE-46
).
(d) Remove the rear floor service hole cover.
(e) Disconnect the connector from the fuel pump
assembly.
(f) Start the engine. After the engine stops naturally,
turn the ignition switch OFF.
HINT:
DTC P0171 may be set.
(g) Crank the engine again and make sure that the
engine does not start.
(h) Remove the fuel tank cap and discharge the
pressure.
(i) Disconnect the cable from the negative battery
terminal.
(j) Connect the connector of the fuel pump assembly.
3. FUEL SYSTEM
(a) When disconnecting the high-pressure fuel line, a
large amount of gasoline will splash. So take the
following precautions.
(1) Discharge the fuel system pressure.
(2) Disconnect the fuel tube.
FU
A115462
FU–2
1NZ-FE FUEL
– FUEL SYSTEM
(3) Drain the fuel remaining inside the fuel pump
tube.
(4) Cover the disconnected fuel tube connector and
pipe with a vinyl bag to prevent damage and the
intrusion of foreign matter.
B000679E04
FU
(b) Observe the following precautions when removing
and installing the fuel injector.
(1) Do not reuse the O-ring.
(2) When placing a new O-ring onto the injector, do
not damage the O-ring.
(3) Coat the new O-ring with grease or gasoline
before installing it. Do not use engine, gear or
brake oil.
A106964
(c) Install the injector into the delivery pipe and cylinder
head, as shown in the illustration. Apply grease or
gasoline oil to the contact surfaces of the delivery
pipe and injector before installing the injector.
O-ring
Delivery Pipe
Insulator
A090674E02
(d) Observe these precautions when disconnecting the
fuel tube connector.
(1) Remove the fuel pipe clamp No.1.
(2) Check whether there is any dirt in the pipe
around the connector before disconnecting it
and remove the dirt as necessary.
A125132
(3) If the connector and pipe are stuck, pinch the
retainer with your hand, then push and pull the
connector to disconnect them. Do not use any
tools.
(4) Check the sealing surface of the pipe for dirt and
mud. If dirty, wipe it with a shop rag or piece of
cloth.
Pull
A125133E01
1NZ-FE FUEL
– FUEL SYSTEM
FU–3
Plastic Bag
(5) Cover the disconnected fuel tube connector and
pipe with a vinyl bag to prevent damage and the
intrusion of foreign matter.
A099427E08
Push
(e) Observe the following precautions when connecting
the fuel tube connector.
(1) Check that there is no damage or foreign matter
on the part of the pipe that comes into contact
with the connector.
(2) Align the axis of the connector with the axis of
the pipe. Push the pipe into the connector until
the connector makes a click sound. If the
connection is too tight, apply a small amount of
fresh engine oil to the tip of the pipe.
FU
A125134E01
Pull
(3) After connecting the pipe and connector, try to
pull them apart to confirm that they are securely
connected.
(4) Attach the lock claws to the connector by
pushing down on the cover.
4. CHECK FOR FUEL LEAKAGE
(a) Check that there is no fuel leakage after performing
maintenance anywhere on the fuel system (See
page
FU-7
).
A125201E01
FU–4
1NZ-FE FUEL
– FUEL SYSTEM
PARTS LOCATION
for Hatchback:
FU
FUEL SUCTION WITH PUMP
AND GAUGE TUBE ASSEMBLY
FUEL INJECTOR
A119137E02
1NZ-FE FUEL
– FUEL SYSTEM
FU–5
for Sedan:
FU
FUEL SUCTION WITH PUMP AND
GAUGE TUBE ASSEMBLY
FUEL INJECTOR
A133330E01
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