TOYOTA SUPRA 1997 Service Repair Manual
Page 1491 of 1807
SF0H0-02
P20903
No.2 Fuel Tank
Protector
Fuel Inlet
Pipe Shield
Fuel Tank CapFuel Pump
Retainer
Fuel Pump and
Gasket
Fuel Breather Pipe
Fuel Tank Band
Fuel Tank ProtectorFuel Tank EVAP Hose Retainer Clamp
Fuel Outlet Pipe
Fuel return
Hose
Fuel Return Hose Gasket
Gasket
Sender Gauge
Assembly
Non-reusable part SF-34
- SFI (2JZ-GTE)FUEL TANK AND LINE
1360 Author: Date:
1997 SUPRA (RM502U)
COMPONENTS
Page 1492 of 1807
SF0H1-01
BO0919
Crack
Leakage
FI1654
SSTUse SST
(310 kgf´cm, 22 ft´lbf)
Fulcrum Length
(11.81 in.)
SST : 09631 - 22020
30 N´m
30 cm
FU0041
Pipe2 - 7mm(0.08-0.28 in.)
Hose
Clip
0 -3mm(0 - 0.12 in.)
- SFI (2JZ-GTE)FUEL TANK AND LINE
SF-35
1361 Author: Date:
1997 SUPRA (RM502U)
INSPECTION
INSPECT FUEL TANK AND LINE
(a) Check the fuel lines for cracks or leakage, and all connec-
tions for deformation.
(b) Check the fuel tank vapor vent system hoses and connec-
tions for looseness, sharp bends or damage.
(c) Check the fuel tank for deformation, cracks, fuel leakage
or tank band looseness.
(d) Check the filler neck for damage or fuel leakage.
(e) Hose and tube connections are as shown in the illustra-
tion.
If a problem is found, repair or replace the part as necessary.
Page 1493 of 1807
SF0H2-01
P18727
No.1 Air Hose
Wire ClampAir Cleaner Hose
MAF Meter
ConnectorMAF Meter SF-36
- SFI (2JZ-GTE)MASS AIR FLOW (MAF) METER
1362 Author: Date:
1997 SUPRA (RM502U)
MASS AIR FLOW (MAF) METER
COMPONENTS
Page 1494 of 1807
SF0H3-01
P12084
ClampConnector
- SFI (2JZ-GTE)MASS AIR FLOW (MAF) METER
SF-37
1363 Author: Date:
1997 SUPRA (RM502U)
REMOVAL
1. REMOVE NO.1 AIR HOSE
2. REMOVE AIR CLEANER HOSE
3. REMOVE MAF METER
(a) Remove the 2 bolts, and disconnect the MAF meter from
the air cleaner case.
Torque: 6.9 N´m (70 kgf´cm, 61 in.´lbf)
(b) Disconnect the MAF meter wire from the wire clamp on
the air cleaner case.
(c) Disconnect the MAF meter connector, and remove the
MAF meter.
Page 1495 of 1807
SF0H4-01
FI6961
E2
THa Ohmmeter
P12997
Voltmeter
VG
E21 Air SF-38
- SFI (2JZ-GTE)MASS AIR FLOW (MAF) METER
1364 Author: Date:
1997 SUPRA (RM502U)
INSPECTION
1. INSPECT MAF METER RESISTANCE
Using an ohmmeter, measure the resistance between terminals
THA and E2.
Resistance:
-20°C (-4°F)10 - 20 kW
0°C (32°F)4 - 7 kW
20°C (68°F)2 - 3 kW
40°C (104°F)0.9 - 1.3 kW
60°C (140°F)0.4 - 0.7 kW
If the resistance is not as specified, replace the MAF meter.
2. INSPECT MAF METER OPERATION
(a) Connectfthe MAF meter connector.
(b) Connectfthe negative (-) terminal cable to the battery.
(c) Using a voltmeter, connect the positive (+) tester probe to
terminal VG, and negative (-) tester probe to terminal
E21.
(d) Turn the ignition switch ON.
(e) Blow air into the MAF meter, and check that the voltage
fluctuates.
If operation is not as specified, replace the MAF meter.
(f) Turn the ignition switch OFF.
(g) Disconnect the negative (-) terminal cable from the bat-
tery.
(h) Disconnect the MAF meter connector.
Page 1496 of 1807
P11325
SF0H6-01
P12079
P12560
Turn
Dashpot
Adjusting Screw
Push Rod SF-40
- SFI (2JZ-GTE)THROTTLE BODY
1366 Author: Date:
1997 SUPRA (RM502U)
THROTTLE BODY
ON-VEHICLE INSPECTION
1. INSPECT THROTTLE BODY
(a) Check that the throttle linkage moves smoothly.
(b) Check the vacuum at the purge port.
Start the engine.
Check the vacuum with your finger.
Port nameAt idleAt 3,000 rpm
PurgeNo vacuumVacuum
2. INSPECT DASHPOT
(a) Warm up engine.
Allow the engine to warm up to normal operating tempera-
ture.
(b) Check idle speed.
Idle speed (Transmission in neutral position):
650 ± 50 rpm
(c) Check and adjust dashpot setting speed.
(1) Disconnect the control cables from the throttle
body.
(2) Turn the throttle linkage until the dashpot adjusting
screw starts to separate from the push rod. Then
keep the throttle linkage at that position.
(3) Check that the dashpot is set.
Dashpot setting speed: 2,300 ± 400 rpm
(4) Reconnect the control cables to the throttle body.
(d) Check VTV operation
(1) Maintain the engine speed at 3,500 rpm.
(2) Release the throttle valve, and check that the en-
gine returns to idle in a few seconds.
Page 1497 of 1807
Z13303
Disconnect
PlugThrottle
Opener
Adjusting
Screw
- SFI (2JZ-GTE)THROTTLE BODY
SF-41
1367 Author: Date:
1997 SUPRA (RM502U)
3. INSPECT THROTTLE OPENER
(a) Warm up engine
Allow the engine to warm up to normal operating tempera-
ture.
(b) Check idle speed
Idle speed (Transmission in neutral position):
650 ± 50 rpm
(c) Check throttle opener setting speed
(1) Disconnect the throttle opener vacuum hose from
the throttle body, and plug the throttle body port.
(2) Maintain the engine speed at 2,500 rpm.
(3) Release the throttle valve.
(4) Check that the throttle opener is set.
Throttle opener setting speed: 1,500 ± 200 rpm
(5) Adjust the throttle opener setting speed by turning
the throttle opener adjusting screw.
(6) Reconnect the throttle opener vacuum hose to the
throttle body.
Page 1498 of 1807
SF0H7-01
P18724
Cruise Control Actuator Cable
Throttle Body
Sub-Throttle
Position Sensor
Connector
PS Air Hose Air Hose Gasket
Throttle Position Sensor
Connector
Sub-Throttle Actuator ConnectorEVAP Hose
Water Bypass HoseAccelerator Cable
Non - reusable part SF-42
- SFI (2JZ-GTE)THROTTLE BODY
1368 Author: Date:
1997 SUPRA (RM502U)
COMPONENTS
Page 1499 of 1807
P11327
(4) (3)
(2)
(!) (5)
(6)
P11328
SF0H8-01
P11329
(1)
(2)
(3)
(4)
- SFI (2JZ-GTE)THROTTLE BODY
SF-43
1369 Author: Date:
1997 SUPRA (RM502U)
REMOVAL
1. DRAIN ENGINE COOLANT
2. REMOVE THROTTLE BODY
(a) Disconnect the hose, cables and connectors from the
throttle body:
(1) Air hose
(2) Accelerator cable
(3) Cruise control actuator cable
(4) Throttle position sensor connector
(5) Sub-throttle position sensor connector
(6) Sub-throttle actuator connector
(b) Remove the 2 bolts and 2 nuts, and disconnect the
throttle body from the air intake chamber.
Torque: 21 N´m (210 kgf´cm, 15 ft´lbf)
(c) Remove the gasket.
HINT:
Use a new gasket.
(d) Disconnect these hoses from the throttle body, and re-
move the throttle body:
(1) EVAP hose
(2) Water bypass hose (from No.4 water bypass pipe)
(3) Water bypass hose (from cylinder head)
(4) PS air hose
Page 1500 of 1807
SF0H9-02
P11982
P11488
Throttle Lever
Throttle Stop
ScrewVacuum
No
Clearance
Disconnect
P11489
Vacuum
Disconnect
Feeler
Gauge
Z09088
Ohmmeter
VTA
VC
E2
IDL
P11453
SF-44
- SFI (2JZ-GTE)THROTTLE BODY
1370 Author: Date:
1997 SUPRA (RM502U)
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
sensors, actuator, dashpot and throttle opener.
2. INSPECT THROTTLE VALVE
(a) Disconnect the throttle opener vacuum hose from the
throttle body.
(b) Apply vacuum to the throttle opener.
(c) Check that there is no clearance between the throttle stop
screw and throttle lever when the throttle valve is fully
closed.
(d) Reconnect the vacuum hose to the throttle body.
3. INSPECT THROTTLE POSITION SENSOR
(a) Disconnect the throttle opener vacuum hose from the
throttle body.
(b) Apply vacuum to the throttle opener.
(c) Insert a 0.54 mm (0.021 in.) or 0.70 mm (0.028 in.) feeler
gauge between the throttle stop screw and stop lever.
(d) Using an ohmmeter, measure the resistance between
each terminal.
Clearance between
lever and stop screwBetween terminalsResistance
0 mm (0 in.)VTA - E20.34 - 6.3 kW
0.54 mm (0.021 in.)IDL - E20.5 kW or less
0.70 mm (0.028 in.)IDL - E2Infinity
Throttle valve fully
openVTA - E22.4 - 11.2 kW
-VC - E23.1 - 7.2 kW
4. IF NECESSARY, ADJUST THROTTLE POSITION
SENSOR
(a) Loosen the 2 set screws of the sensor.