1996 TOYOTA TERCEL Service Repair Manual

SF1PX-01
(a)
(b)
(a)
(b)
(c)(d)(e)
MF-28
- MFITHROTTLE BODY
1996 TERCEL (RM440U)
REMOVAL
1. DRAIN ENGINE COOLANT
2. REMOVE AIR CLEANER CAP
3. DISCONNECT CONTROL CABLES FROM THROTTLE
BODY
(a) Disconnect the accelerator cable
(b) Disconnect the A/T throttle cable.
4. REMOVE THROTTLE BODY
(a) Disconnect the throttle position sensor connector and
wire clamp.
(b) Disconnect the IAC valve connector.
(c) Disconnect the vacuum hose (from upper port of TVV of
EVAP) from port ºPº of throttle body.
(d) Disconnect the vacuum hose (from port ºPº of EGR vacu-
um modulator) from port ºEº of throttle body.
(e) Disconnect the vacuum hose (from port ºRº of EGR vacu-
um modulator) from port ºRº of throttle body.
(f) Remove the 2 nuts and 2 bolts.
Torque: 19.5 N´m (195 kgf´cm, 14 ft´lbf)
(g) Disconnect the throttle body from the intake manifold.
(h) Remove the gasket.
HINT:
At the time of installation, plaese refer to the following items. At-
tach a new gasket to the intake manifold, facing the protrusion
downward.

(j)
(k)
(i)
- MFITHROTTLE BODY
MF-29
1996 TERCEL (RM440U)
(i) Disconnect water bypass hose (from water bypass pipe).
(j) Disconnect the water bypass hose (from water outlet).
(k) Disconnect the air hoses (from PS air control valve).

SF1PY-01
MF-30
- MFITHROTTLE BODY
1996 TERCEL (RM440U)
INSPECTION
1. CLEAN THROTTLE BODY
(a) Wash and clean the cast part with a soft brush and carbu-
retor cleaner.
(b) Using compressed air, blow all passages and apertures
in the throttle body.
NOTICE:
To prevent deterioration, do not clean the throttle position
senser.
2. INSPECT THROTTLE VALVE
Check that there is no clearance between the throttle stop
screw and throttle lever when the throttle valve is fully closed.
3. INSPECT THROTTLE POSITION SENSOR
(a) Insert a 0.050 mm (0.020 in.) or 0.70 mm (0.028 in.) feeler
gauge between the throttle stop screw and stop lever.
(b) 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
openVTA - E22.0 - 10.2 kW
-VC - E22.5 - 5.9 kW

- MFITHROTTLE BODY
MF-31
1996 TERCEL (RM440U)
4. IF NECESSARY, ADJUST THROTTLE POSITION SEN-
SOR
(a) Loosen the 2 set screws of the sensor.
(b) Insert a 0.60 mm (0.024 in.) feeler gauge between the
throttle stop screw and stop lever.
(c) Connect the tester probe of an ohmmeter to the terminals
IDL and E2 of the sensor.
(d) Gradually turn the sensor clockwise until the ohmmeter
deflects, and secure it with the 2 set screws.
(e) Recheck the continuity between terminals IDL and E2.
Clearance between
lever and stop screwContinuity (IDL - E2)
0.50 mm (0.020 in.)Continuity
0.70 mm (0.028 in.)No continuity

SF0XC-05
MF-32
- MFITHROTTLE BODY
1996 TERCEL (RM440U)
INSTALLATION
Installation is in the reverse order of removal (See page MF-28).

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.

SF0XE-05
MF-34
- MFIIDLE AIR CONTROL (IAC) VALVE
1996 TERCEL (RM440U)
COMPONENTS

SF0XF-07
- MFIIDLE AIR CONTROL (IAC) VALVE
MF-35
1996 TERCEL (RM440U)
REMOVAL
1. REMOVAL THROTTLE BODY (See page MF-28)
2. REMOVE IAC VALVE
Remove the 4 screws, IAC valve and gasket.
HINT:
At the time of installation, plaese refer to the following items.
Use a new gasket.