1996 TOYOTA LAND CRUISER Fuel pump

A00196
ONFC
High LowFPR
BE6653
P22901
P09401
−
DIAGNOSTICS ENGINE
DI−123
1996 LAND CRUISER (RM451U)
7 Check operation of fuel pump.
PREPARATION:
(a) Remove instrument panel speaker No.1 panel (See page
SF−65 ).
(b) Turn ignition switch ON.
CHECK:
(a) Connect terminal FC of ECM and body ground.
(b) Check operation of fuel pump when terminal FPR of ECM
is grounded and is not grounded.
OK:
There is pressure in the inlet hose.
HINT:
At this time, you will hear a fuel flowing noise.
FPR is grounded
(Low speed)FPR is not grounded (High speed)
NGNGGo to step 8
NGOKGo to step 9
OKNG
Repair or replace
harness or connecter between fuel pump
relay and fuel pump.
8 Check fuel pump (See page SF−6 ).
NG Repair or replace fuel pump.
OK
Check for open or short in harness and connector between EFI main relay (Mark\
ing: EFI) and cir-
cuit opening relay and fuel pump relay and fuel pump and body ground (See p\
age IN−28).
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DI−124
−
DIAGNOSTICS ENGINE
1996 LAND CRUISER (RM451U)
9 Check fuel pump resistor (See page SF−58 ).
NG Replace fuel pump resistor.
OK
Check for open and short in harness and connector between fuel pump relay and fuel\
pump resis-
tor and fuel pump (See page IN−28).
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FI1654
Fulcrum Length
30 cm
SST
−
SFI SFI SYSTEM
SF−3
631
Author: Date:
1996 LAND CRUISER (RM451U)
8. FUEL SYSTEM
(a) When disconnecting the high fuel pressure line, a large
amount of gasoline will spill out, so observe the following
procedures:
(1) Disconnect the fuel pump connector.
(2) Start the engine. After the engine has stopped onits own, turn off the ignition switch.
(3) Put a container under the connection.
(4) Slowly loosen the connection.
(5) Disconnect the connection.
(6) Plug the connection with 2 rubber plugs.
(7) Reconnect the fuel pump connector.
(b) When connecting the union bolt on the high pressure pipe
union, observe the following procedures:
(1) Always use a new gasket.
(2) Tighten the union bolt by hand.
(3) Tighten the union bolt to the specified torque.
Torque: 29 N·m (300 kgf·cm, 21 ft·lbf)
(c) When connecting the flare nut on the high pressure pipe union, observe the following procedures:
(1) Apply a light coat of engine oil to the flare and tight-
en the flare nut by hand.
(2) Using SST, tighten the flare nut to the specified torque.
SST 09631−22020
NOTICE:
Do not rotate the fuel pipe, when tightening the flare nut.
Torque: 30 N·m (310 kgf·cm, 22 ft·lbf)
HINT:
Use a torque wrench with a fulcrum length of 30 cm (11.81 in.).
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P09286
New O−ring
Grommet Injector
Delivery Pipe WRONG
CORRECT
P09401
Fuel Return Hose
SF−4
−
SFI SFI SYSTEM
632
Author: Date:
1996 LAND CRUISER (RM451U)
(d) Observe the following precautions when removing and
installing the injectors.
(1) Never reuse the O −ring.
(2) When placing a new O −ring on the injector, take
care not to damage it in any way.
(3) Coat a new O −ring with spindle oil or gasoline be-
fore installing −never use engine, gear or brake oil.
(e) Install the injector to the delivery pipe and intake manifold
as shown in the illustration.
(f) Check that there are no fuel leaks after doing mainte- nance anywhere on the fuel system.
(1) Remove the fuse cover on the instrument panel.
(2) Connect the TOYOTA hand− held tester to the
DLC3.
(3) Turn the ignition switch ON and TOYOTA hand −
held tester main switch ON.
NOTICE:
Do not start the engine. (4) Select the active test mode on the TOYOTA hand−held tester.
(5) Please refer to the TOYOTA hand −held tester oper-
ator ’s manual for further details.
If you have no T OYOTA hand−held tester, connect the positive
(+) and negative ( −) leads from the battery to the fuel pump con-
nector (See page SF−14 ).
(6) Pinch the fuel return hose. The pressure in the high
pressure line will rise to approx. 392 kPa (4 kgf/cm
2,
57 psi). In this state, check to see that there are no
leaks from any part of the fuel system.
NOTICE:
Always pinch the hose. Avoid bending as it may cause the
hose to crack.
(7) Turn the ignition switch to LOCK.
(8) Disconnect the TOYOTA hand −held tester from the
DLC3.
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SF1EF−01
−
SFI FUEL PUMP
SF−9
1996 LAND CRUISER (RM451U)
COMPONENTS
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SF−10
−
SFI FUEL PUMP
1996 LAND CRUISER (RM451U)
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SF1EH−02
−
SFI FUEL PUMP
SF−11
1996 LAND CRUISER (RM451U)
REMOVAL
CAUTION:
Do not smoke or work near an open flame when working on
the fuel pump.
1. REMOVE SECOND SEATS
Torque: 39 N·m (400 kgf·cm, 29 ft·lbf)
2. REMOVE SCUFF PLATE
3. REMOVE SIDE GARNISH
4. REMOVE STEP PLATE
5. DISCONNECT FLOOR MATS
6. REMOVE FLOOR SERVICE HOLE COVER
Remove the 3 screws and service hole cover.
7. DISCONNECT FUEL PIPE AND HOSE FROM FUEL
PUMP BRACKET
CAUTION:
Remove the fuel filter cap to prevent the fuel from flowing
out.
(a) Disconnect the fuel pump and sender gauge connector.
HINT:
At the time of installation, plaese refer to the following items.
Check for fuel leakage.
(b) Remove the union bolt and gaskets, and disconnect the outlet pipe from the pump bracket.
Torque: 29 N·m (300 kgf·cm, 22 ft·lbf)
(c) Disconnect the return hose from the pump bracket.
8. REMOVE FUEL PUMP BRACKET ASSEMBLY FROM
FUEL TANK
(a) Remove the 8 bolts.
Torque: 3.9 N·m (40 kgf·cm, 35 in.·lbf)
(b) Pull out the pump bracket assembly.
NOTICE:
Do not damage the fuel pump filter.
Be careful that the arm of the sender gauge should
not bent.
(c) Remove the gasket from the pump bracket.
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SF−12
−
SFI FUEL PUMP
1996 LAND CRUISER (RM451U)
HINT:
At the time of installation, plaese refer to the following items.
install a new gasket to the pump bracket.
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