Page 531 of 1202
P20392
SST
MF-6
- MFIFUEL PUMP
530 Author: Date:
1996 TERCEL (RM440U)
(d) Install the fuel inlet hose and SST (pressure gauge) to the
fuel filter outlet with the 3 gaskets and union bolt.
SST 09268-45012
Torque: 29.0 N´m (290 kgf´cm, 22 ft´lbf)
(e) Wipe off any splattered gasoline.
(f) Reconnect the negative (-) terminal cable to the battery.
(g) Connect the TOYOTA hand-held tester to the DLC3 (See
step 1 check fuel pump operation (a) to (f)).
(h) Turn the ignition switch ON.
(i) Measure the fuel pressure.
Fuel pressure:
281 - 287 kPa
(2.87 - 2.93 kgf/cm
2, 40.8 - 41.7 psi)
If pressure is high, replace the fuel pressure regulator.
(j) If pressure is low, check these parts:
Fuel hoses and connection
Fuel pump
Fuel filter
Fuel pressure regulator
(k) Remove the TOYOTA hand-held tester from the DLC3.
(l) Reinstall the fuse cover on instrument panel.
(m) Start the engine.
(n) Disconnect the vacuum sensing hose from the fuel pres-
sure regulator.
(o) Measure the fuel pressure at idle.
Fuel pressure:
281 - 287 kPa (2.87 - 2.93 kgf/cm
2, 40.8 - 41.7 psi)
(p) Reconnect the vaccum sensing hose to the fuel pressure
regulator plug the hose end.
(q) Measure the fuel pressure at idle.
Fuel pressure:
226 - 265 kPa (2.3 - 2.6 kgf/cm
2, 33 - 37 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 injector.
(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) Connect the fuel inlet hose to the fuel filter with 2 new gas-
kets and the union bolt.
Page 541 of 1202
SF0X0-03
MF-16
- MFIINJECTOR
540 Author: Date:
1996 TERCEL (RM440U)
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 a normal operating
noise in proportion to engine speed.
(2) If you have no sound scope, you can check the
injector 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) Disconnect the injector connector.
(b) Using an ohmmeter, measure the resistance between the
terminals.
Resistance:
13.4 - 14.2 W at 20°C (68°F)
If the resistance is not as specified, replace the injector.
(c) Reconnect the injector connector.
Page 545 of 1202
Z14695
SST (Hose)
SST (Union)
O-Ring
SST
(Clamp)
Vinyl Tube
P19552
TOYOTA Hand-Held Tester
DLC3
FI3211
SST
(Wire)
Connect
FI1676
MF-20
- MFIINJECTOR
1996 TERCEL (RM440U)
(h) Install the grommet and a O-ring to the injector.
(i) Connect SST (union and hose) to the injector, and hold
the injector and union with SST (clamp).
SST 09368-41046
(j) Put the injector into the graduated cylinder.
CAUTION:
Install a suitable vinyl hose onto the injector to prevent
gasoline from splashing out.
(k) Remove the fuse cover on the instrument panel.
(l) Connect the TOYOTA hand-held tester to the DLC3.
(m) Turn the ignition switch ON and TOYOTA hand-held tes-
ter main switch ON.
NOTICE:
Do not start the engine.
(n) Select the active test mode on the TOYOTA hand-held
tester.
(o) Please refer to the TOYOTA hand-held tester operator's
manual for further details.
(p) 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-5).
(q) 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:
39 - 49 cm
3 (2.4 - 3.0 cu in.) per 15 sec.
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 tester 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) Disconnect the negative (-) terminal cable from the bat-
tery.
(c) Remove the SST.
Page 547 of 1202
SF0X4-05
FI3271
New
O-Ring
New Grommet
P00159
CORRECT
WRONG
InjectorDelivery Pipe GrommetO-Ring
WRONG
P20295
Spacer
Insulator
Connector MF-22
- MFIINJECTOR
1996 TERCEL (RM440U)
INSTALLATION
1. INSTALL INJECTORS AND DELIVERY PIPE
(a) Install a new grommet to the injector.
(b) Apply a light coat of gasoline to an 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) Place the 2 spacers and 4 insulators in position on the cyl-
inder head.
(e) Place the injectors together with the delivery pipe on the
cylinder head.
(f) Check that the injectors rotate smoothly.
HINT:
If the injectors do not rotate smoothly, the probable cause is in-
correct installation of O-rings. Replace the O-rings.
(g) Position the injector connector upward.
(h) Install the 2 bolts.
Torque: 19 N´m (190 kgf´cm, 14 ft´lbf)
2. CONNECT ENGINE WIRE
(a) Connect the 4 injector connectors.
(b) Connect the engine wire to the surge tank stay.
3. CONNECT FUEL INLET HOSE TO DELIVERY PIPE
(a) Install 2 new gaskets and the inlet hose with the union
bolt.
Torque: 30 N´m (300 kgf´cm, 23 ft´lbf)
(b) Connect the engine wire clamp to the No.2 engine hang-
er.
4. CONNECT FUEL RETURN HOSE TO FUEL RETURN
PIPE
5. CONNECT VACUUM SENSING HOSE TO FUEL PRES-
SURE REGULATOR
Page 551 of 1202
SF1PW-01
MF-26
- MFITHROTTLE BODY
550 Author: Date:
1996 TERCEL (RM440U)
THROTTLE BODY
ON-VEHICLE INSPECTION
1. INSPECT THROTTLE BODY
(a) Check that the throttle linkage moves smoothly.
(b) Check the vacuum at port.
(1) Start the engine.
(2) Check the vacuum with your finger.
Port nameAt idleOther than idle
PNo vacuumVacuum
ENo vacuumVacuum
RNo vacuumNo vacuum
2. INSPECT THROTTLE POSITION SENSOR
(a) A/T:
Disconnect the throttle cable from the linkage.
(b) Disconnect the sensor connector.
(c) Insert 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 - E20.2 - 5.7 kW
0.50 mm (0.020 in.)IDL - E22.3 kW or less
0.70 mm (0.028 in.)IDL - E2Infinity
Throttle valve
fully openedVTA - E22.0 - 10.2 kW
-VC - E22.5 - 5.9 kW
(e) Reconnect the sensor connector.
(f) A/T:
Reconnect the throttle cable.
Page 558 of 1202
SF199-02
- MFIIDLE AIR CONTROL (IAC) VALVE
MF-33
557 Author: Date:
1996 TERCEL (RM440U)
IDLE AIR CONTROL (IAC) VALVE
ON-VEHICLE INSPECTION
1. INSPECT IAC VALVE OPERATION
(a) Initial conditions:
Engine at normal operating temperature
Idle speed set correctly
Transmission in neutral position
(b) Using SST, connect terminals TE1 and E1 of the DLC1.
SST 09843-18020
(c) After engine rpm is kept at 900 - 1,300 rpm for 5 seconds,
check that it returns to idle speed.
If the rpm operation is not as specified, check the IAC valve, wir-
ing and ECM.
(d) Remove the SST from the DLC1.
SST 09843-18020
2. INSPECT IAC VALVE RESISTANCE
NOTICE:
ºColdº and ºHotº in the following sentences express the temper-
ature of the coils themselves. ºColdº is from -10°C (14°F) to 50°C
(122°F) and ºHotº is from 50°C (122°F) to 100°C (212°F).
(a) Disconnect the IAC valve connector.
(b) Using an ohmmeter, measure the resistance between ter-
minal +B and other terminals (RSC, RSO).
Resistance:
Cold17.0 - 24.5 W
Hot21.5 - 28.5 W
If resistance is not as specified, replace the IAC valve.
(c) Reconnect the IAC valve connector.
Page 563 of 1202
P20320
EFI Main
Relay
SF0XI-04
Z13175
Continuity
Ohmmeter
30
85 No
Continuity
Ohmmeter86
87
Z13176
Continuity
30
85 Ohmmeter86
87
Battery MF-38
- MFIEFI MAIN RELAY
562 Author: Date:
1996 TERCEL (RM440U)
EFI MAIN RELAY
INSPECTION
1. REMOVE EFI MAIN RELAY (Marking: EFI MAIN)
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 86 and 85.
If there is no continuity, replace the relay.
(b) Check that there is no continuity between terminals 87
and 30.
If there is continuity, replace the relay.
3. INSPECT EFI MAIN RELAY OPERATION
(a) Apply battery voltage across terminals 86 and 85.
(b) Using an ohmmeter, check that there is continuity be-
tween terminals 87 and 30.
If there is no continuity, replace the relay.
4. REINSTALL EFI MAIN RELAY
Page 581 of 1202
P19552
TOYOTA Hand-Held Tester
DLC3SF0WH-03
MF-56
- MFIFUEL CUT RPM
580 Author: Date:
1996 TERCEL (RM440U)
FUEL CUT RPM
INSPECTION
1. WARM UP ENGINE
Allow the engine to warm up to normal operating temperature.
2. CONNECT TOYOTA HAND-HELD TESTER OR OBDII
SCAN TOOL
(a) Remove the fuse cover on the instrument panel.
(b) Connect the TOYOTA hand-held tester or OBDII scan
tool to the DLC3.
(c) Please refer to the TOYOTA hand-held tester or OBDII
scan tool operator's manual for futher details.
3. INSPECT FUEL CUT OFF PRM
(a) Increase the engine speed to at least 2,500 rpm.
(b) Use a sound scope to check for injector operating noise.
(c) Check that when the throttle lever is released, injector op-
eration noise stops momentarily and then resumes.
HINT:
Measure with the A/C OFF.
Fuel return rpm: 900 rpm
4. DISCONNECT TOYOTA HAND- HELD TESTER OR
OBDII SCAN TOOL
