1996 TOYOTA T100 check engine

Downloaded from www.Manualslib.com manuals search engine P24763
− MFI (3RZ−FE)FUEL PUMP
MF−7
959 Author: Date:
1996 TOYOTA T100 (RM449U)
(u) 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 injector.
(v) After checking fuel pressure, disconnect the negative (−)
terminal cable from the battery and carefully remove SST
to prevent gasoline from splashing.
SST 09268−45012
(w) Reconnect the fuel inlet pipe to the delivery pipe with 2
new gaskets and the union bolt.
Torque: 29 N·m (300 kgf·cm, 22 ft·lbf)
(x) Reconnect the negative (−) terminal cable to the battery.
(y) Check for fuel leakage.

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 P25104Sound Scope
SF0AP−03
P24765
P25103
Ohmmeter MF−16
− MFI (3RZ−FE)INJECTOR
968 Author: Date:
1996 TOYOTA T100 (RM449U)
INJECTOR
ON−VEHICLE INSPECTION
1. INSPECT INJECTOR OPERATION
Check operation sound from each injector.
(1) With the engine running or cranking, use a sound
scope to check that there is normal operating noise
in proportion to engine speed.
(2) If you have no sound scope, you can check the in-
jector transmission operation with your finger.
If no sound or unusual sound is heard, check the wiring connec-
tor, injector or injection signal from the ECM.
2. INSPECT INJECTOR RESISTANCE
(a) Remove the throttle body.
(See page MF−28)
(b) Disconnect the injector connectors.
(c) Using an ohmmeter, measure the resistance between the
terminals.
Resistance:
12 − 16 Ω at 20°C (68°F)
If the resistance is not as specified, replace the injector.
(d) Reconnect the injector connectors.
(e) Reinstall the throttle body.
(See page MF−30)

Downloaded from www.Manualslib.com manuals search engine B02508
B02509
MF−20
− MFI (3RZ−FE)INJECTOR
1996 TOYOTA T100 (RM449U)
(j) 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 − 5.3 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:
1 drop or less per 3 minutes
(b) Turn the ignition switch to LOCK.
(c) Disconnect the negative (−) terminal cable from battery.
(d) Remove SST and TOYOTA hand−held tester.
SST 09268−41046
(e) Reinstall the fuel pressure regulator to the delivery pipe.

Downloaded from www.Manualslib.com manuals search engine P14758
New
GrommetNew
O−Ring
SF0AT−03
P14756
Upward
Turn
Push
P14757
P24768
− MFI (3RZ−FE)INJECTOR
MF−21
1996 TOYOTA T100 (RM449U)
INSTALLATION
1. INSTALL INJECTORS TO DELIVERY PIPE
(a) Install a new grommet to the injector.
(b) Apply a light coat of gasoline to a new O−ring and install
it to the injector.
(c) While turning the injector left and right, install it to the de-
livery pipe. Install the 4 injectors.
(d) Position the injector connector upward.
2. INSTALL INJECTORS AND DELIVERY PIPE
(a) Place the 4 new insulators and in position on the spacers.
(b) Place the 4 injectors together with the delivery pipe in
position on the cylinder head.
(c) Temporarily install the 2 bolts holding the delivery pipe to
the cylinder head.
(d) Check that the injectors rotate smoothly.
HINT:
If injectors do not rotate smoothly, the probable cause is incor-
rect installation of O−rings. Replace the O−rings.
(e) Position the injector connector upward.
(f) Tighten the 2 bolts holding the delivery pipe to the cylinder
head.
Torque: 21 N·m (210 kgf·cm, 15 ft·lbf)
3. INSTALL THROTTLE BODY (See page MF−30)
4. REINSTALL HIGH−TENSION CORDS TO SPARK
PLUGS
5. INSTALL NO.1 AND NO.2 PCV HOSES
6. INSTALL AIR INTAKE CONNECTOR
7. M/T:
CONNECT ACCELERATOR CABLE TO THROTTLE
BODY
8. A/T:
CONNECT THROTTLE AND ACCELERATOR CABLES
TO THROTTLE BODY

Downloaded from www.Manualslib.com manuals search engine MF−22
− MFI (3RZ−FE)INJECTOR
1996 TOYOTA T100 (RM449U)
9. INSTALL MAF METER, RESONATOR AND AIR
CLEANER CAP
10. FILL WITH ENGINE COOLANT
11. RECHECK ENGINE COOLANT LEVEL

Downloaded from www.Manualslib.com manuals search engine BO0919
Crack
Leakage
Deformation
Z10162
SST
SST: 09631−22020Use SST
30 N·m
(310 kgf·cm, 22 ft·lbf)
Fulcrum
Length
30 cm
(11.81 in.)
FU0041
Pipe
0 − 3 mm (0 − 0.12 in.) 2 − 5 mm (0.08 − 0.20 in.)
Hose
Clip
SF0AV−02
MF−24
− MFI (3RZ−FE)FUEL TANK AND LINE
1996 TOYOTA T100 (RM449U)
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.

Downloaded from www.Manualslib.com manuals search engine B02580
SF1QK−01
− MFI (3RZ−FE)THROTTLE BODY
MF−25
977 Author: Date:
1996 TOYOTA T100 (RM449U)
THROTTLE BODY
ON−VEHICLE INSPECTION
1. INSPECT THROTTLE BODY
(a) Check that the throttle linkage moves smoothly.
(b) Check the vacuum at each port.
(1) Start the engine.
(2) Check the vacuum with your finger.
Port nameAt idleAt 3,500 rpm
PNo vacuumVacuum
ENo vacuumVacuum
RNo vacuumVacuum
2. INSPECT THROTTLE POSITION SENSOR
(a) Disconnect the sensor connector.
(b) Apply vacuum to the throttle opener.
(c) Using an ohmmeter, measure the resistance between
each terminal.
Throttle valve
conditionBetween
terminalsResistance
Fully closedVTA − E20.2 − 5.7 kΩ
Fully closedIDL − E22.3 kΩ or less
OpenIDL − E2Infinity
Fully openVTA − E22.0 − 10.2 kΩ
−VC − E22.5 − 5.9 kΩ
(d) Connect the sensor connector.
3. INSPECT THROTTLE OPENER
(a) Warm up engine
Allow the engine to warm up to normal operating tempera-
ture.
(b) Connect TOYOTA hand−held tester or OBD II scan tool.
(c) Check idle speed
Idle speed: 700 rpm
(d) Disconnect the vacuum hose from the throttle opener,
and plug the hose end.