Page 2633 of 3115
B16461
EFI Main RelaySF06G-18
B04910
ContinuityOhmmeter Ohmmeter
No
Continuity1
2
3 4
B04911Battery Ohmmeter
Continuity1 2
3 4
SF-38
- SFIEFI MAIN RELAY
1737 Author: Date:
2004 LAND CRUISER (RM1071U)
EFI MAIN RELAY
INSPECTION
1. REMOVE RELAY BOX COVER
2. REMOVE EFI MAIN RELAY (Marking: EFI)
3. INSPECT EFI MAIN RELAY
(a) Inspect the relay continuity.
(1) Using an ohmmeter, check that there is a continuity
between terminal 1 and 3.
If there is no continuity, replace the relay.
(2) Check that there is no continuity between terminals
2 and 4.
If there is a continuity, replace the relay.
(b) Inspect the relay operation.
(1) Apply battery positive voltage across terminals 1
and 3.
(2) Using an ohmmeter, check that there is a continuity
between terminal 2 and 4.
If there is no continuity, replace the relay.
4. REINSTALL EFI MAIN RELAY
5. REINSTALL RELAY BOX COVER
Page 2634 of 3115
SF0Q2-14
A07061
TOYOTA
Hand-Held
Tester
DLC3
B04432
Sound Scope
SF-62
- SFIFUEL CUT RPM
1761 Author: Date:
2004 LAND CRUISER (RM1071U)
FUEL CUT RPM
INSPECTION
1. WARM UP ENGINE
Allow the engine to warm up to normal operating temperature.
2. CONNECT TOYOTA HAND-HELD TESTER OR OBDII
SCAN TOOL
(a) Connect the TOYOTA hand-held tester or OBDII scan
tool to the DLC3.
(b) Please refer to the TOYOTA hand-held tester or OBDII
scan tool operator's manual for further details.
3. INSPECT FUEL CUTOFF RPM OPERATION
(a) Increase the engine speed to at least 2,500 rpm.
(b) Check the injector for operating noise.
(c) Check that when the throttle lever is released, injector op-
eration noise stops momentarily and then resumes.
HINT:
The vehicle should be at at rest during the inspection.
Inspection with the A/C OFF.
Fuel return speed: 1,000 rpm
4. DISCONNECT TOYOTA HAND- HELD TESTER OR
OBDII SCAN TOOL
Page 2635 of 3115
SF0XZ-1 1
B04926
V-Bank Cover
Vacuum Sensing HoseFuel Return Hose
Fuel Pressure Regulator
N´m (kgf´cm, ft´lbf)
Non-reusable part: Specified torque
7.5 (80, 66 in.´lbf)
O-Ring
Fuel Return Hose
Delivery Pipe
SF-16
- SFIFUEL PRESSURE REGULATOR
1715 Author: Date:
2004 LAND CRUISER (RM1071U)
FUEL PRESSURE REGULATOR
COMPONENTS
Page 2636 of 3115
B04906
Install
Turn
SF0Y1-1 1
B04905
SF-18
- SFIFUEL PRESSURE REGULATOR
1717 Author: Date:
2004 LAND CRUISER (RM1071U)
INSTALLATION
1. INSTALL FUEL PRESSURE REGULATOR
(a) Apply a light coat of gasoline to a new O-ring, and install
it to the fuel pressure regulator.
(b) While turning the fuel pressure regulator left and right,
install it to the delivery pipe.
(c) Install the fuel pressure regulator with the 2 bolts.
Torque: 7.5 N´m (80 kgf´cm, 66 in.´lbf)
(d) Connect the vacuum sensing hose to the fuel pressure
regulator.
(e) Connect the fuel return hose to the pressure regulator.
2. CHECK FOR FUEL LEAKS (See page SF-1)
3. INSTALL V-BANK COVER
Page 2637 of 3115
B04905
SF0Y0-08
B04993
- SFIFUEL PRESSURE REGULATOR
SF-17
1716 Author: Date:
2004 LAND CRUISER (RM1071U)
REMOVAL
1. REMOVE V-BANK COVER
2. REMOVE FUEL PRESSURE REGULATOR
(a) Disconnect the vacuum sensing hose from the fuel pres-
sure regulator.
(b) Disconnect the fuel return hose from the fuel pressure
regulator.
CAUTION:
Put a shop rag under the fuel pressure regulator.
(c) Remove the 2 bolts, and pull out the pressure regulator.
(d) Remove the O-ring from the fuel pressure regulator.
Page 2638 of 3115
I25156
Fuel Pump
RelaySF137-06
B07643
Continuity
2 1 Ohmmeter
Ohmmeter
3
No Continuity5
B07644
2 1
Ohmmeter
3 5
Battery
Continuity
SF-40
- SFIFUEL PUMP RELAY
1739 Author: Date:
2004 LAND CRUISER (RM1071U)
FUEL PUMP RELAY
INSPECTION
1. REMOVE RELAY BOX COVER
2. REMOVE FUEL PUMP RELAY (Marking: F/PUMP)
3. INSPECT FUEL PUMP RELAY CONTINUITY
(a) Using an ohmmeter, check that there is a continuity be-
tween terminal 1 and 2.
If there is no continuity, replace the relay.
(b) Check that there is no continuity between terminals 3 and
5.
If there is a continuity, replace the relay.
4. INSPECT FUEL PUMP RELAY OPERATION
(a) Apply the battery positive voltage across terminal 1 and
2.
(b) Using an ohmmeter, check that there is a continuity be-
tween terminal 3 and 5.
If there is no continuity, replace the relay.
5. REINSTALL FUEL PUMP RELAY
6. REINSTALL RELAY BOX COVER
Page 2639 of 3115
SF138-04
B16448
Fuel Pump Resistor
NVm (kgfVcm, ftVlbf) : Specified torque
12 (122, 8.8)
- SFIFUEL PUMP RESISTOR
SF-41
1740 Author: Date:
2004 LAND CRUISER (RM1071U)
FUEL PUMP RESISTOR
COMPONENTS
Page 2640 of 3115
SF139-04
B16449
Ohmmeter SF-42
- SFIFUEL PUMP RESISTOR
1741 Author: Date:
2004 LAND CRUISER (RM1071U)
INSPECTION
1. REMOVE FUEL PUMP RESISTOR
2. INSPECT FUEL PUMP RESISTOR
Using an ohmmeter, measure the resistance between the ter-
minals.
Resistance: 0.70 - 0.76 W at 20°C (68°F)
If the resistance is not as specified, replace the resistor.
3. REINSTALL FUEL PUMP RESISTOR
Torque: 12 N´m (122 kgf´cm, 8.8 ft´lbf)