fuel injector TOYOTA LAND CRUISER 1996 J80 User Guide

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SFI INJECTOR
SF−27
1996 LAND CRUISER (RM451U)
18. DISCONNECT PS RESERVOIR TANK
Remove the 3 bolts and disconnect the reservoir tank.
19. REMOVE ENGINE OIL DIPSTICK
20. DISCONNECT GROUND STRAP
21. REMOVE INTAKE MANIFOLD STAY
Remove the 2 bolts and intake manifold stay.
22. DISCONNECT VACUUM HOSES FROM TVV
23. DISCONNECT NO.1 WATER BYPASS HOSE FROM
CYLINDER HEAD
24. REMOVE AIR INTAKE CHAMBER
Remove the 6 bolts, 2 nuts, air intake chamber and 2 gaskets.
25. REMOVE FUEL RETURN PIPE
(a) Disconnect the fuel hose from the fuel pressure regulator.
(b) Remove the 2 bolts and fuel return pipe.
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SF−28
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SFI INJECTOR
1996 LAND CRUISER (RM451U)
26. REMOVE FUEL INLET PIPE
Remove the 2 union bolts, bolt, 4 gaskets and fuel pipe.
27. REMOVE DELIVERY PIPE AND INJECTORS
(a) Disconnect the 6 injector connectors.
(b) Remove the 3 bolts and delivery pipe together with the 6
injectors.
NOTICE:
Be careful not to drop the injectors when removing the de-
livery pipe.
(c) Remove the 6 insulators and 3 spacers from the intake manifold.
(d) Pull out the 6 injectors from the delivery pipe.
(e) Remove the O−ring and grommet from each injector.
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SF1EO−03
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SFI INJECTOR
SF−29
1996 LAND CRUISER (RM451U)
INSPECTION
1. INSPECT INJECTOR INJECTION
CAUTION:
Keep injector clean of sparks during the test.
(a) Connect SST (union and hose) to the fuel filter outlet with
the 2 gaskets and union bolt.
SST 09268−41046 (90405 −09015)
Torque: 29 N·m (300 kgf·cm, 22 ft·lbf)
(b) Remove the fuel pressure regulator (See page SF−21).
(c) Install the O−ring to the fuel inlet of pressure regulator.
(d) Connect SST (hose) to the fuel inlet of the pressure regu-
lator with SST (union).
SST 09268−41046 (09268 −41091)
Torque: 25 N·m (250 kgf·cm, 18 ft·lbf)
(e) Connect the fuel return hose to the fuel outlet of the pres-
sure regulator.
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FI4848
FI4849
SF−30
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SFI INJECTOR
1996 LAND CRUISER (RM451U)
(f) Install the grommet and O−ring to the injector.
(g) Connect SST (union and hose) to the injector, and hold
the injector and union with SST (clamp).
SST 09268−41046
(h) Put the injector into the graduated cylinder.
HINT:
Install a suitable vinyl hose onto the injector to prevent gasoline
from splashing out.
(i) Remove the fuse cover on the instrument panel.
(j) Connect the TOYOTA hand−held tester to the DLC3.
(k) Turn the ignition switch ON and TOYOTA hand−held tes-
ter main switch ON.
NOTICE:
Do not start the engine.
(l) Select the active test mode on the TOYOTA hand −held
tester.
(m) Please refer to the TOYOTA hand −held tester operator’s
manual for further details.
(n) If you have no TOYOTA hand−held tester, connect the positive (+) and negative (−) leads from the battery to the
fuel pump connector (See page SF−14)
(o) Connect SST (wire) to the injector and battery for 15 se- conds, and measure the injection volume with a gra-
duated cylinder. Test each injector 2 or 3 times.
SST 09842−30070
Volume:
69 − 88 cm
3 (4.2 − 5.4 cu in.) per 15 seconds
Difference between each injector:
5 cm
3 (0.3 cu in.) or less
If the injection volume is not as specified, replace the injector.
2. INSPECT LEAKAGE
(a) In the condition above, disconnect the test probes of SST (wire) from the battery and check the fuel leakage from
the injector.
SST 09842−30070
Fuel drop: One drop or less per minute
(b) Turn the ignition switch to LOCK.
(c) Disconnect the negative ( −) terminal cable from the bat-
tery.
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−
SFI INJECTOR
SF−31
1996 LAND CRUISER (RM451U)
(d) Remove SST.
SST 09268−41045
(e) Reinstall the fuel pressure regulator to the delivery pipe
(See page SF−22 ).
(f) Disconnect the TOYOTA hand− held tester from the
DLC3.
(g) Reinstall the fuse cover on the instrument panel.
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−
SFI INJECTOR
SF−33
1996 LAND CRUISER (RM451U)
(k) Connect the 6 injector connectors as shown.
2. INSTALL FUEL INLET PIPE
Install the fuel inlet pipe with 4 new gaskets, the 2 union bolts
and bolt.
Torque:
Union bolt: 29 N·m (300 kgf·cm, 22 ft·lbf)
Bolt: 20 N·m (200 kgf·cm, 14 ft·lbf)
3. INSTALL FUEL RETURN PIPE
(a) Install the fuel return pipe with the 2 bolts. Torque: 20 N·m (200 kgf·cm, 14 ft·lbf)
(b) Connect the fuel hose to the fuel pressure regulator.
4. INSTALL AIR INTAKE CHAMBER
Install 2 new gaskets and the air intake chamber with the 6 bolts
and 2 nuts. Torque: 21 N·m (210 kgf·cm, 15 ft·lbf)
5. CONNECT NO.1 WATER BYPASS HOSE TO CYL- INDER HEAD
6. CONNECT VACUUM HOSES TO TVV
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SF0Q2−08
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SFI FUEL CUT RPM
SF−67
695
Author: Date:
1996 LAND CRUISER (RM451U)
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 OBD II
SCAN TOOL
(a) Remove the fuse cover on the instrument panel.
(b) Connect the TOYOTA hand−held tester or OBD II scan tool to the DLC3.
(c) Please refer to the TOYOTA hand−held tester or OBD II
scan tool operator’s manual for further details.
3. INSPECT FUEL CUTOFF PRM
(a) Increase the engine speed to at least 3,500 rpm.
(b) Use a sound scope to check for injector operating noise.
(c) Check that when the throttle lever is released, injector op-
eration noise stops momentarily and then resumes.
HINT:
Measure with the A/C OFF. Fuel return rpm: 1,200 rpm
4. DISCONNECT TOYOTA HAND −HELD TESTER OR
OBD II SCAN TOOL
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SS1ES−01
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SERVICE SPECIFICATIONS SFI
SS−11
134
Author: Date:
1996 LAND CRUISER (RM451U)
SFI
SERVICE DATA
Fuel pressure
regulatorFuel pressure at no vacuum265 − 304 kPa (2.7 − 3.1 kgf/cm2, 38 − 44 psi)
Fuel pumpResistance at 20°C (68° F)0.2 − 3.0 Ω
InjectorResistance at 20°C (68° F)
Injection volume
Difference between each cylinder
Fuel leakage13.4 − 14.2 Ω
69 − 88 cm3 (4.2 − 5.4 cu in.) per 15 sec.
5 cm3 (0.3 cu in.) or less
1 drop or less per 12 min.
MAF meterResistance (THA − E2) at −20° C (− 4°F)
at 0° C (32° F)
at 20° C (68° F)
at 40° C (104° F)
at 60° C (140° F)
at 80° C (176° F)10 − 20 kΩ
4 − 7 kΩ
2 − 3 kΩ
0.9 − 1.3 kΩ
0.4 − 0.7 kΩ
0.2 − 0.4 kΩ
Throttle bodyThrottle body fully closed angle
Dashpot setting speed
Throttle opener setting speed6°
2,200 ± 300 rpm
700 − 1,000 rpm
Throttle position
sensorClearance between stop screw and lever
0 mm (0 in.) VTA − E2
0.50 mm (0.020 in.) IDL − E2
0.75 mm (0.030 in.) IDL − E2
Throttle valve fully open VTA − E2
− VC − E2
0.2 − 5.7 kΩ
2.3 kΩ or less
Infinity
2.0 − 10.2 kΩ
2.5 − 5.9 kΩ
IAC valveResistance (B1 − S1 and S3, B2 − S2 and S4)
at cold (− 10 − 50 ° C (−50 − 122° F))
at hot (50 − 100°C (122 − 212°F))
15 − 25 Ω
20 − 30 Ω
Fuel pump resistorResistance at 20°C (68° F)0.70 − 0.76 Ω
VSV for fuel pres-
sure controlResistance at 20°C (68° F)37 − 44 Ω
ECT sensorResistance at −20° C (− 4°F)
0 °C (32° F)
20 °C (68° F)
40 °C (104° F)
60 °C (140° F)
80 °C (176° F)10 − 20 kΩ
4 − 7 kΩ
2 − 3 kΩ
0.9 − 1.3 kΩ
0.4 − 0.7 kΩ
0.2 − 0.4 kΩ
EGR gas temp
sensorResistance at 50°C (122° F)
at 100° C (212° F)
150 °C (302° F)64 − 97 kΩ
11 − 16 kΩ
2 − 4 kΩ
Heated oxygen
sensorHeater coil resistance at 20°C (68° F)11 − 16 Ω
Fuel cut rpmFuel return rpm1,200 rpm
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