Downloaded from www.Manualslib.com manuals search engine EC0GF−01
EC3069Check Valve (Vacuum Valve)
Gasket
− EMISSION CONTROL (3RZ−FE)EVAPORATIVE EMISSION (EVAP) CONTROL SYSTEM
EC−5
933 Author: Date:
1996 TOYOTA T100 (RM449U)
EVAPORATIVE EMISSION (EVAP)
CONTROL SYSTEM
INSPECTION
1. VISUALLY INSPECT LINES AND CONNECTIONS
Look for loosen connections, sharp bends or damage.
2. VISUALLY INSPECT FUEL TANK
Look for deformation, cracks or fuel leakage.
3. VISUALLY INSPECT FUEL TANK CAP
Check if the cap and/or gasket are deformed or damaged.
If necessary, repair or replace the cap.
4. REMOVE VSV
Remove the screw from the charcoal canister.
5. REMOVE CHARCOAL CANISTER
6. REMOVE CAP FROM CHARCOAL CANISTER
7. VISUALLY INSPECT CHARCOAL CANISTER
Look for cracks or damage.
8. INSPECT FOR CLOGGED FILTER AND STUCK
CHECK VALVE
(a) Using low pressure compressed air (4.71 kPa, 48 gf/cm
2,
0.68 psi), blow into tank pipe and check that air flows with-
out resistance from the other pipes.
(b) Blow air (4.71 kPa, 48 gf/cm
2, 0.68 psi) into purge pipe
and check that air does not flow from the tank pipe and air
flows without resistance from the other pipe.
If a problem is found, replace the charcoal canister.
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EC3069
Gasket
Check Valve (Vacuum Valve)
− EMISSION CONTROL (5VZ−FE)EVAPORATIVE EMISSION (EVAP) CONTROL SYSTEM
EC−5
944 Author: Date:
1996 TOYOTA T100 (RM449U)
EVAPORATIVE EMISSION (EVAP)
CONTROL SYSTEM
INSPECTION
1. VISUALLY INSPECT LINES AND CONNECTIONS
Look for loose connections, sharp bends or damage.
2. VISUALLY INSPECT FUEL TANK
Look for deformation, cracks or fuel leakage.
3. VISUALLY INSPECT FUEL TANK CAP
Check if the cap and/or gasket are deformed or damaged.
If necessary, repair or replace the cap.
4. REMOVE VSV
5. REMOVE CHARCOAL CANISTER
6. VISUALLY INSPECT CHARCOAL CANISTER
Look for cracks or damage.
7. CHECK FOR CLOGGED FILTER, AND STUCK
CHECK VALVE
(a) Using low pressure compressed air (4.71 kPa, 48 gf/cm
2,
0.68 psi), blow into tank pipe and check that air flows with-
out resistance from the other pipes.
(b) Blow low pressure compressed air (4.71 kPa, 48 gf/cm
2,
0.68 psi) into purge pipe and check that air does not flow
from the tank pipe.
But the air flows without resistance from the other pipe.
If a problem is found, replace the charcoal canister.
Downloaded from www.Manualslib.com manuals search engine FI7231
TOYOTA Hand−Held Tester
DLC3SF0AG−03
P24761
− MFI (3RZ−FE)FUEL PUMP
MF−5
957 Author: Date:
1996 TOYOTA T100 (RM449U)
FUEL PUMP
ON−VEHICLE INSPECTION
1. CHECK FUEL PUMP OPERATION
(a) Connect the TOYOTA hand−held tester to the DLC3.
(b) Turn the ignition switch ON and TOYOTA hand−held tes-
ter main switch ON.
NOTICE:
Do not start the engine.
(c) Select the active test mode on the TOYOTA hand−held
tester.
(d) Please refer to the TOYOTA hand−held tester
operator ’s manual for further details.
(e) If you have no TOYOTA hand−held tester, connect the
positive (+) and negative (−) leads from the battery to the
fuel pump connector.
(See page MF−10)
(f) Check that there is pressure in the hose from the fuel filter.
HINT:
At this time, you will hear fuel return noise.
If there is no pressure, check these parts:
Fusible links (AM1 40A, AM2 30A, ALT 80A)
Fuses (EFI 15A, IGN 7.5A)
EFI main relay
Fuel pump
ECM
Wiring connections
(g) Turn the ignition switch to LOCK.
(h) Remove the TOYOTA hand−held tester.
2. CHECK FUEL PRESSURE
(a) Check that the battery voltage is above 12 volts.
(b) Disconnect the negative (−) terminal cable from the bat-
tery.
(c) Remove the union bolt and 2 gaskets, and disconnect the
fuel inlet pipe from the delivery pipe.
HINT:
Put a suitable container or shop rag under the delivery
pipe.
Slowly loosen the union bolt.
Downloaded from www.Manualslib.com manuals search engine P24762
FI7231
TOYOTA Hand−Held Tester
DLC3
MF−6
− MFI (3RZ−FE)FUEL PUMP
958 Author: Date:
1996 TOYOTA T100 (RM449U)
(d) Install the fuel inlet pipe and SST (pressure gauge) to the
delivery pipe with 3 gaskets and SST (union bolt).
SST 09268−45012
Torque: 29 N·m (300 kgf·cm, 22 ft·lbf)
(e) Wipe off any splattered gasoline.
(f) Connect the TOYOTA hand−held tester to the DLC3.
(g) Turn the ignition switch ON and TOYOTA hand−held tes-
ter main switch ON.
NOTICE:
Do not start the engine.
(h) Select the active test mode on the TOYOTA hand−held
tester.
(i) Please refer to the TOYOTA hand−held tester operator’s
manual for further details.
(j) If you have no TOYOTA hand−held tester, connect the
positive (+) and negative (−) leads from the battery to the
fuel pump connector.
(See page MF−10)
(k) Reconnect the negative (−) terminal cable to the battery.
(l) Turn the ignition switch ON.
(m) Measure the fuel pressure.
Fuel pressure:
265 − 304 kPa (2.7 − 3.1 kgf/cm
2, 38 − 44 psi)
If pressure is high, replace the fuel pressure regulator.
If pressure is low, check these parts:
Fuel hoses and connections
Fuel pump
Fuel filter
Fuel pressure regulator
Injectors
(n) Remove the TOYOTA hand−held tester.
(o) Start the engine.
(p) Disconnect the vacuum sensing hose from the fuel pres-
sure regulator, and plug the hose end.
(q) Measure the fuel pressure at idle.
Fuel pressure:
265 − 304 kPa (2.7 − 3.1 kgf/cm
2, 38 − 44 psi)
(r) Reconnect the vacuum sensing hose to the fuel pressure
regulator.
(s) Measure the fuel pressure at idle.
Fuel pressure:
206 − 255 kPa (2.1 − 2.6 kgf/cm
2, 31 − 37 psi)
If pressure is not as specified, check the vacuum sensing hose
and fuel pressure regulator.
(t) Stop the engine.
Downloaded from www.Manualslib.com manuals search engine SF0AJ−03
P15055
P15059
MF−10
− MFI (3RZ−FE)FUEL PUMP
1996 TOYOTA T100 (RM449U)
DISASSEMBLY
1. INSPECT FUEL PUMP RESISTANCE
Using an ohmmeter, measure the resistance between the ter-
minals.
Resistance: 0.2 − 3.0 Ω at 20°C (68°F)
If the resistance is not as specified, replace the fuel pump and/
or set plate.
2. INSPECT FUEL PUMP OPERATION
Connect the positive (+) lead from the battery to terminal 1 of
the connector, and the negative (−) lead to terminal 2. Check
that the fuel pump operates.
NOTICE:
These tests must be done quickly (within 10 seconds) to
prevent the coil from burning out. Keep the fuel pump as far
away from the battery as possible. Always do the switching
at the battery side.
If operation is not as specified, replace the fuel pump and/or
plate.
3. REMOVE FUEL PUMP FROM FUEL PUMP BRACKET
(a) Disconnect the fuel pump connector.
(b) Pull off the lower side of the fuel pump from the pump
bracket.
(c) Disconnect the fuel hose from the fuel pump, and remove
the fuel pump.
(d) Remove the rubber cushion from the fuel pump.
4. REMOVE FUEL PUMP FILTER FROM FUEL PUMP
(a) Using a small screwdriver, remove the clip.
(b) Pull out the pump filter.
Downloaded from www.Manualslib.com manuals search engine SF0AS−03
P21648
Z14631
SST
(Hose)
SST
(Union)
Union
Bolt
Gasket
P15780
SST
(Union)
Fuel Return Hose Fuel Pressure
Regulator
SST
(Hose)
B02507
− MFI (3RZ−FE)INJECTOR
MF−19
1996 TOYOTA T100 (RM449U)
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
2 gaskets and the union bolt.
SST 09268−41046 (90405−09015)
Torque: 29 N·m (300 kgf·cm, 22 ft·lbf)
(b) Remove the fuel pressure regulator.
(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) and the 2 bolts.
SST 09268−41046 (09268−41091)
(e) Connect the fuel return hose to the fuel outlet of the pres-
sure regulator.
(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 a graduated cylinder.
HINT:
Install a suitable vinyl hose onto the injector to prevent gasoline
from splashing out.
(i) Connect the TOYOTA hand−held tester to the DLC3.
(See page MF−5)
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TOYOTA Hand−Held Tester
DLC3
P21057
SF0BT−02
P21210
− SFI (5VZ−FE)FUEL PUMP
SF−5
1011 Author: Date:
1996 TOYOTA T100 (RM449U)
FUEL PUMP
ON−VEHICLE INSPECTION
1. CHECK FUEL PUMP OPERATION
(a) Connect the TOYOTA hand−held tester to the DLC3.
(b) Turn the ignition switch ON and push the TOYOTA hand−
held tester main switch ON.
NOTICE:
Do not start the engine.
(c) Select the active test mode on the TOYOTA hand−held
tester.
(d) Please refer to the TOYOTA hand−held tester operator’s
manual for further details.
(e) If you have no TOYOTA hand−held tester, connect the
positive (+) and negative (−) leads from the battery to the
fuel pump connector.
(f) Check that there is pressure in the fuel inlet hose from the
fuel filter.
HINT:
If there is fuel pressure, you will hear the sound of fuel flowing.
If there is no pressure, check these parts:
H−fuse (ALT 80A)
M−fuses (AM1 40A, AM2 30A)
Fuses (EFI 15A, IGN 7.5A)
EFI main relay
Circuit opening relay
Fuel pump
ECM
Wiring connections
(g) Turn the ignition switch to LOCK.
(h) Disconnect the TOYOTA hand−held tester from the
DLC3.
2. CHECK FUEL PRESSURE
(a) Check the battery positive voltage is above 12 V.
(b) Disconnect the negative (−) terminal cable from the bat-
tery.
(c) Remove the 6 bolts, and disconnect the No.2 timing belt
cover.
(d) Remove the union bolt holding the fuel pipe to the delivery
pipe and gasket.
CAUTION:
Put a shop towel under the delivery pipe. Slowly loosen the
union bolt.
Downloaded from www.Manualslib.com manuals search engine P21220
SST (Union)
SST
(Union Bolt) Gasket
P21224
SF−6
− SFI (5VZ−FE)FUEL PUMP
1012 Author: Date:
1996 TOYOTA T100 (RM449U)
(e) Install SST (pressure gauge) to the delivery pipe with the
2 gaskets and SST (union and union bolt).
SST 09268−45012
Torque:34.3 N·m (350 kgf·cm, 25 ft·lbf)
(f) Wipe off any splattered gasoline.
(g) Connect the TOYOTA hand−held tester to the DLC3.
(See on−vehicle inspection in fuel pump)
(h) Reconnect the negative (−) terminal cable to the battery.
(i) Turn the ignition switch ON.
(j) Measure the fuel pressure.
Fuel pressure:
265 − 304 kPa (2.7 − 3.1 kgf/cm
2, 38 − 44 psi)
If pressure is high, replace the fuel pressure regulator.
If pressure is low, check these parts:
Fuel hoses and connections
Fuel pump
Fuel filter
Fuel pressure regulator
VSV for fuel pressure control
(k) Disconnect the TOYOTA hand−held tester from the
DLC3.
(l) Reinstall the No.2 timing belt cover with the 6 bolts.
(m) Start the engine.
(n) Disconnect the vacuum sensing hose from the fuel pres-
sure regulator, and plug the hose end.
(o) Measure the fuel pressure at idle.
Fuel pressure:
265 − 304 kPa (2.7 − 3.1 kgf/cm
2, 38 − 44 psi)
(p) Reconnect the vacuum sensing hose to the fuel
pressure regulator.
(q) Measure the fuel pressure at idle.
Fuel pressure:
226 − 265 kPa (2.3 − 2.7 kgf/cm
2, 33 − 38 psi)
If pressure is not as specified, check the vacuum sensing hose
and fuel pressure regulator.
(r) Stop the engine.
(s) Check that the fuel pressure remains as specified for 5
minutes after the engine has stopped.
Fuel pressure:
147 kPa (1.5 kgf/cm
2, 21 psi) or more
If pressure is not as specified, check the fuel pump, pressure
regulator and/or injectors.
(t) After checking fuel pressure, disconnect the negative (−)
terminal cable from the battery and carefully remove the
SST to prevent gasoline from splashing.
SST 09268−45012
(u) Remove the other union bolt, 3 gaskets and fuel pipe
from the delivery pipes.