1996 TOYOTA LAND CRUISER Vacuum

SF1EW−04
−
SFI THROTTLE BODY
SF−45
1996 LAND CRUISER (RM451U)
REMOVAL
1. DRAIN ENGINE COOLANT
2. DISCONNECT NO.2 PCV HOSE
3. DISCONNECT AIR CLEANER HOSE
4. DISCONNECT CONTROL CABLES FROM THROTTLE
BODY
5. DISCONNECT THROTTLE POSITION SENSOR CON-
NECTOR
6. DISCONNECT IDLE AIR CONTROL VALVE CONNEC- TOR
7. REMOVE THROTTLE BODY
(a) Disconnect the EVAP hose.
(b) Disconnect the 3 vacuum hoses.
(c) Disconnect the No.2 water bypass hose.
(d) Remove the 4 bolts, and disconnect the throttle body from
the air intake chamber.
Torque: 21 N·m (210 kgf·cm, 15 ft·lbf)
(e) Remove the throttle body gasket.
HINT:
At the time of installation, plaese refer to the following items.
install a new gasket on the air intake chamber.
(f) Disconnect the No.1 water bypass hose from the throttle
body, and remove the throttle body.
(g) Disconnect the No.2 water bypass hose from the throttle
body.
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SF1EX−01
SF−46
−
SFI THROTTLE BODY
1996 LAND CRUISER (RM451U)
INSPECTION
1. CLEAN THROTTLE BODY
(a) Using a soft brush and carburetor cleaner, clean the cast parts.
(b) Using compressed air, clean all the passages and aper- tures.
NOTICE:
To prevent deterioration, do not clean the throttle position
sensor, dashpot and IAC valve.
2. INSPECT THROTTLE VALVE
(a) Apply vacuum to the throttle opener.
(b) Check that there is no clearance between the throttle stop
screw and throttle lever when the throttle valve is fully
closed.
3. INSPECT THROTTLE POSITION SENSOR
(a) Apply vacuum to the throttle opener.
(b) Insert a 0.50 mm (0.020 in.) or 0.75 mm (0.030 in.) feeler
gauge between the throttle stop screw and stop lever.
(c) Using an ohmmeter, measure the resistance between
each terminal.
Clearance between
lever and stop screwBetween terminalsResistance
0 mm (0 in.)VTA − E20.2 − 5.7 kΩ
0.50 mm (0.020 in.)IDL − E22.3 kΩ or less
0.75 mm (0.030 in.)IDL − E2Infinity
Throttle valve fully
openVTA − E22.0 − 10.2 kΩ
−VC − E22.5 − 5.9 kΩ
4. IF NECESSARY, ADJUST THROTTLE POSITION SEN-
SOR
(a) Loosen the 2 set screws of the sensor.
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−
SFI THROTTLE BODY
SF−47
1996 LAND CRUISER (RM451U)
(b) Apply vacuum to the throttle opener.
(c) Insert a 0.62 mm (0.024 in.) feeler gauge between the
throttle stop screw and stop lever.
(d) Connect the test probe of an ohmmeter to the terminals IDL and E2 of the sensor.
(e) Gradually turn the sensor clockwise until the ohmmeter deflects, and secure it with the 2 set screws.
(f) Recheck the continuity between terminals IDL and E2.
Clearance between
lever and stop screwContinuity (IDL − E2)
0.50 mm (0.020 in.)Continuity
0.75 mm (0.030 in.)No continuity
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SF1F9−01
−
SFI VSV FOR FUEL PRESSURE CONTROL
SF−59
687
Author: Date:
1996 LAND CRUISER (RM451U)
VSV FOR FUEL PRESSURE
CONTROL
INSPECTION
1. REMOVE AIR INTAKE CHAMBER (See page EM−28 )
2. DISCONNECT VACUUM HOSES AND CONNECTOR
3. INSPECT VSV FOR OPEN CIRCUIT
Using an ohmmeter, check that there is continuity between the
terminals. Resistance: 37 − 44 Ω at 20° C (68°F)
If there is no continuity, replace the VSV.
4. INSPECT VSV FOR GROUND
Using an ohmmeter, check that there is no continuity between
each terminal and the body.
If there is continuity, replace the VSV.
5. INSPECT VSV OPERATION
(a) Check that the air flows from pipe E to pipe G.
(b) Apply battery voltage across the terminals.
(c) Check that the air does not flows from pipe E to the filter.
If operation is not as specified, replace the VSV.
6. RECONNECT VACUUM HOSES AND CONNECTOR
7. REINSTALL AIR INTAKE CHAMBER (See page EM−54 )
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SS1ER−01
SS−10
−
SERVICE SPECIFICATIONS EMISSION CONTROL
1996 LAND CRUISER (RM451U)
TORQUE SPECIFICATION
Part tightenedN·mkgf·cmft·lbf
Charcoal canister x Charcoal canister bracket1414510
Charcoal canister bracket x Body1818513
TVV x Cylinder head2930022
Intake manifold stay x Air intake chamber3636026
Intake manifold stay x Cylinder block3636026
EGR valve x Air intake chamber for stud bolt
for nut9
1890
18078 in.·lbf 13
EGR valve x EGR pipe6465047
EGR valve x EGR vacuum modulator1818513
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SS1ES−01
−
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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