1996 TOYOTA LAND CRUISER Workshop Manual

−
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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SF1EY−01
SF−48
−
SFI THROTTLE BODY
1996 LAND CRUISER (RM451U)
INSTALLATION
Installation is in the reverse order of removal (See page SF−45 ).
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SF1EZ−01
−
SFI IDLE AIR CONTROL (IAC) VALVE
SF−49
677
Author: Date:
1996 LAND CRUISER (RM451U)
IDLE AIR CONTROL (IAC) VALVE
ON−VEHICLE INSPECTION
1. INSPECT IAC VALVE FOR OPERATING SOUND
Check that there is a clicking sound immediately after stopping
the engine.
If the operation is not as specified, check the IAC valve, wiring
and ECM.
2. INSPECT IAC VALVE RESISTANCE
(a) Disconnect the IAC valve connector.
(b) Using an ohmmeter, measure the resistance between the
terminals (B1 −S1 and S3, B2−S2 and S4).
Resistance:
At Cold: −10 − 50°C (−50 − 122°F): 15 − 25 Ω
At Hot: 50 −100°C (122 − 212° F): 20 − 30 Ω
If resistance is not as specified, replace the IAC valve.
(c) Reconnect the IAC valve connector.
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SF1F0−01
SF−50
−
SFI IDLE AIR CONTROL (IAC) VALVE
1996 LAND CRUISER (RM451U)
COMPONENTS
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SF1F1−01
−
SFI IDLE AIR CONTROL (IAC) VALVE
SF−51
1996 LAND CRUISER (RM451U)
REMOVAL
1. REMOVE THROTTLE BODY (See page SF−45)
2. REMOVE IAC VALVE
Remove the 2 screws, IAC valve and O−ring.
HINT:
At the time of installation, install the IAC valve with a new O −
ring.
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SF1F2−01
SF−52
−
SFI IDLE AIR CONTROL (IAC) VALVE
1996 LAND CRUISER (RM451U)
INSPECTION
INSPECT IDLE AIR CONTROL VALVE OPERATION
(a) Apply battery voltage to terminals B1 and B2, and while repeatedly grounding S1 −S2−S3−S4−S1 in sequence,
and check that the valve moves toward the closed posi-
tion.
(b) Apply battery voltage to terminals B1 and B2, and while repeatedly grounding S4 −S3−S2−S1−S4 in sequence,
and check that the valve moves toward the open position.
If operation is not as specified, replace the IAC valve.
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SF1F3−01
−
SFI IDLE AIR CONTROL (IAC) VALVE
SF−53
1996 LAND CRUISER (RM451U)
INSTALLATION
Installation is in the reverse order of removal (See page SF−51 ).
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SF06G−11
P05668
OhmmeterContinuity
No Continuity Ohmmeter
1
2
43
P05667
Ohmmeter Continuity
Battery
1
2
4 3
SF−54
−
SFI EFI MAIN RELAY
682
Author: Date:
1996 LAND CRUISER (RM451U)
EFI MAIN RELAY
INSPECTION
1. REMOVE EFI MAIN RELAY
LOCATION: In the engine compartment relay box.
2. INSPECT EFI MAIN RELAY CONTINUITY
(a) Using an ohmmeter, check that there is continuity be-
tween terminals 1 and 3.
(b) Check that there is no continuity between terminals 2 and
4.
If continuity is not as specified, replace the relay.
3. INSPECT EFI MAIN RELAY OPERATION
(a) Apply battery voltage across terminals 1 and 3.
(b) Using an ohmmeter, check that there is continuity be-
tween terminals 2 and 4.
If operation is not as specified, replace the relay.
4. REINSTALL EFI MAIN RELAY
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