Page 423 of 1202
EM18U-02
P19776
CO/HC Meter
- ENGINE MECHANICALCO/HC
EM-1
422 Author: Date:
1996 TERCEL (RM440U)
CO/HC
INSPECTION
HINT:
This check is used only to determine whether or not the idle CO/
HC complies with regulations.
1. INITIAL CONDITIONS
(a) Engine coolant at normal operating temperature.
(b) Air cleaner installed.
(c) All pipes and hoses of air induction system connected.
(d) All accessories switched OFF.
(e) All vacuum lines properly connected.
HINT:
All vacuum hoses for EGR systems, etc. should be properly
connected.
(f) SFI system wiring connectors fully plugged.
(g) Ignition timing set correctly.
(h) Transmission in neutral position.
(i) CO/HC meter calibrated by hand.
2. START ENGINE
3. RACE ENGINE AT 2,500 RPM FOR APPROX. 180 SE-
CONDS
4. INSERT CO/HC METER TESTING PROBE AT LEAST
40 cm (1.3 ft) INTO TAILPIPE DURING IDLING
5. IMMEDIATELY CHECK CO/HC CONCENTRATION AT
IDLE AND/OR 2,500 RPM
HINT:
When doing the 2 mode (2,500 rpm and idle) test, follow the
measurement order prescribed by the applicable local regula-
tions.
Page 426 of 1202
EM0KA-05
P20168
EM-4
- ENGINE MECHANICALVALVE CLEARANCE
425 Author: Date:
1996 TERCEL (RM440U)
VALVE CLEARANCE
INSPECTION
HINT:
Inspect and adjust the valve clearance when the engine is cold.
1. DISCONNECT PCV HOSES FROM CYLINDER HEAD
COVER
2. REMOVE HIGH- TENSION CORDS AND IGNITION
COILS FROM SPARK PLUGS
3. REMOVE CYLINDER HEAD COVER
(a) Remove the oil filler cap.
(b) Remove the 5 cap nuts and seal washers.
(c) Pry out the cylinder head cover, and remove the cover
and gasket.
4. SET NO.1 CYLINDER TO TDC/COMPRESSION
(a) Turn the crankshaft pulley, and align its groove with the
timing mark º0º of the No.1 timing belt cover.
(b) Check that the valve lifters on the No.1 cylinder are loose
and valve lifters on the No.4 cylinder are tight.
If not, turn the crankshaft 1 complete revolution (360°) and align
the marks as above.
5. INSPECT VALVE CLEARANCE
(a) Check only the valves indicated.
(1) Using a feeler gauge, measure the clearance be-
tween the valve lifter and camshaft.
(2) Record the out-of-specification valve clearance
measurements. They will be used later to determine
the required replacement adjusting shim.
Valve clearance (Cold):
Intake0.15 - 0.25 mm (0.006 - 0.010 in.)
Exhaust0.31 - 0.41 mm (0.012 - 0.016 in.)
Page 428 of 1202
EM0494
P20156
SST(A)
SST(B)
EM-6
- ENGINE MECHANICALVALVE CLEARANCE
427 Author: Date:
1996 TERCEL (RM440U)
(b) Determine the replacement adjusting shim size by the fol-
lowing Formula or Charts on the next 2 pages:
(1) Using a micrometer, measure the thickness of the
removed shim.
(2) Calculate the thickness of a new shim so that the
valve clearance comes within specified value.
T ....... Thickness of removed shim
A ....... Measured valve clearance
N ....... Thickness of new shim
Intake:
N = T + (A - 0.20 mm (0.008 in.))
Exhaust:
N = T + (A - 0.36 mm (0.014 in.))
Select a new shim with a thickness as close as possible
to the calculated value.
HINT:
Shims are available in 17 increments of 0.05 mm (0.0020 in.),
from 2.50 mm (0.0984 in.) to 3.30 mm (0.1299 in.).
(c) Install a new adjusting shim.
(1) Place a new adjusting shim on the valve lifter.
(2) Using SST (A), press down the valve lifter and re-
move SST (B).
SST 09248-55040 (09248-05410, 09248-05020)
(d) Recheck the valve clearance.
7. REINSTALL CYLINDER HEAD COVER
(a) Apply seal packing to the cylinder head as shown in the
illustration.
Seal packing:
Part No. 08826-00080 or equivalent
(b) Install the gasket to the cylinder head cover.
(c) Install the cylinder head cover with the 5 seal washers and
cap nuts.
Torque: 7.0 N´m (70 kgf´cm, 61 in.´lbf)
(d) Install oil filler cap.
8. REINSTALL IGNITION COILS AND HIGH-TENSION
CORDS
9. RECONNECT EGR VACUUM MODULATOR
10. RECONNECT PCV HOSES TO CYLINDER HEAD COV-
ER
Page 431 of 1202
P19552
TOYOTA Hand-Held Tester
DLC3EM0K9-03
P20244
- ENGINE MECHANICALIGNITION TIMING
EM-9
430 Author: Date:
1996 TERCEL (RM440U)
IGNITION TIMING
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 further details.
3. CONNECT TIMING LIGHT
4. INSPECT IGNITION TIMING
(a) Using SST, connect terminals TE1 and E1 of the DLC1.
SST 09843-18020
(b) Using a timing light, check the ignition timing.
Ignition timing:
10° BTDC @ idle
(w/ Cooling fan OFF and transmission in neutral
position)
(c) Remove the SST from the DLC1.
SST 09843-18020
5. FURTHER CHECK IGNITION TIMING
Check that the ignition timing advances.
Ignition timing:
7 - 17° BTDC @ idle
(w/ Cooling fan OFF and transmission in neutral posi-
tion)
HINT:
The timing mark moves in a range between 7° and 17°.
6. DISCONNECT TIMING LIGHT
7. DISCONNECT TOYOTA HAND- HELD TESTER OR
OBDII SCAN TOOL
Page 432 of 1202
EM18V-02
EM-10
- ENGINE MECHANICALIDLE SPEED
431 Author: Date:
1996 TERCEL (RM440U)
IDLE SPEED
INSPECTION
1. INITIAL CONDITIONS
(a) Engine coolant at normal operating temperature.
(b) Air cleaner installed.
(c) All pipes and hoses of air induction system connected.
(d) All accessories switched OFF.
(e) All vacuum lines properly connected.
HINT:
All vacuum hoses for EGR system, etc. should be properly connected.
(f) SFI system wiring connectors fully plugged.
(g) Ignition timing set correctly.
(h) Transmission in neutral position.
2. CONNECT TOYOTA HAND-HELD TESTER OR OBDII SCAN TOOL (See page EM-9)
3. INSPECT IDLE SPEED
(a) Race the engine speed at 2,500 rpm for approx. 90 seconds.
(b) Check the idle speed.
Idle speed:
750 ± 50 rpm
(w/ Cooling fan OFF and transmission in neutral position)
If the idle speed is not as specified, check the IAC valve and air intake system.
4. DISCONNECT TOYOTA HAND-HELD TESTER OR OBDII SCAN TOOL
Page 446 of 1202
EG0023
EM-24
- ENGINE MECHANICALCYLINDER HEAD
1996 TERCEL (RM440U)
9. w/ A/C and w/o PS:
REMOVE IDLER PULLEY BRACKET
(a) Loosen the idler pulley mounting nut and adjusting bolt,
and remove the drive belt.
(b) Remove the 3 bolts and idler pulley bracket.
10. REMOVE IGNITION COILS AND SPARK PLUGS
11. DISCONNECT VACUUM HASES
(a) Disconnect the vacuum hose from the EGR valve.
(b) Disconnect the 3 vacuum hoses from the throttle body.
(c) Disconnect the vacuum hose from the TVV (to charcoal
canister).
(d) Disconnect the vacuum hose from the TVV (to throttle
body).
(e) Disconnect the vacuum hose from the EGR VSV.
12. REMOVE THROTTLE BODY (See page MF-28)
13. REMOVE EGR PIIPE
Loosen the union nut, and remove the 2 nuts, EGR pipe and
gasket.
14. REMOVE EGR VALVE AND VACUUM MODULATOR
(a) Remove the bolt and disconnect the vacuum modulator.
(b) Remove the 2 nuts, EGR valve, EGR vacuum modulator
with the bracket and gasket.
15. REMOVE EGR VSV AND CAMSHAFT POSITION SEN-
SOR
(a) Disconnect the EGR VSV and camshaft position sensor
connector.
(b) Remove the bbolt and EGR VSV.
(c) Remove the bolt, camshaft position sensor and O-ring.
Page 475 of 1202
EG0023
P20290
- ENGINE MECHANICALCYLINDER HEAD
EM-53
1996 TERCEL (RM440U)
22. INSTALL EGR PIPE
Install a new gasket, sleeve ball and the EGR pipe with the
union nut and 2 nuts.
Torque:
Union nut
40 N´m (400 kgf´cm, 29 in.´lbf)
Nut
30 N´m (300 kgf´cm, 22 in.´lbf)
23. INSTALL THROTTLE BODY (See page MF-32)
24. CONNECT VACUUM HOSES
(a) Connect the vacuum hose from the EGR valve.
(b) Connect the 3 vacuum hoses from the throttle body.
(c) Connect the vacuum hose from TVV (to charcoal canis-
ter).
(d) Connect the vacuum hose from the TVV (to throttle body).
(e) Connect the vacuum hose from the EGR VSV.
25. INSTALL IGNITION COILS AND SPARK PLUGS
26. w/ A/C and w/o PS:
INSTALL IDLER PULLEY BRACKET
(a) Install the idler pulley bracket with the 3 bolts.
Torque:
12 mm head bolt
27 N´m (275 kgf´cm, 20 ft´lbf)
14 mm head bolt
37 N´m (375 kgf´cm, 27 ft´lbf)
(b) Install and adjust the drive belt (See page AC-18).
27. w/ PS:
INSTALL PS PUMP BRACKET AND PS PUMP
(a) Install the PS pump bracket with the 3 bolts.
Torque: 44 N´m (440 kgf´cm, 32 ft´lbf)
(b) Temporarily install the PS pump and drive belt with the 2
bolts (See page SR-33).
(c) Adjust the belt tension (See page SR-3).
28. CONNECT FUEL HOSE
Connect the fuel inlet hose with the union bolt and 2 new gas-
kets.
Torque: 29 N´m (300 kgf´cm, 22 ft´lbf)
29. INSTALL AIR CLEANER ASSEMBLY WITH AIR IN-
TAKE CONNECTOR
30. INSTALL ACCELERATOR CABLE, AND ADJUST IT
31. A/T:
CONNECT THROTTLE CABLE, AND ADJUST IT
Page 526 of 1202
SF1PQ-02
- MFIMFI SYSTEM
MF-1
525 Author: Date:
1996 TERCEL (RM440U)
MFI SYSTEM
PRECAUTION
1. BEFORE WORKING ON FUEL SYSTEM, DISCON-
NECT NEGATIVE (-) TERMINAL CABLE FROM BAT-
TERY
HINT:
Any diagnostic trouble code retained by the computer will be
erased when the negative (-) terminal cable is disconnected.
Therefore, if necessary, read the diagnosis before disconnect-
ing the negative (-) terminal cable from the battery.
2. DO NOT SMOKE OR WORK NEAR AN OPEN FLAME
WHEN WORKING ON THE FUEL SYSTEM
3. KEEP GASOLINE AWAY FROM RUBBER OR LEATH-
ER PARTS
4. MAINTENANCE PRECAUTIONS
(a) In event of engine misfire, the following precautions
should be taken.
(1) Check proper connection to battery terminals, etc.
(2) Handle higt-tension cords carefully.
(3) After repair work, check that the ignition coil termi-
nals and all other ignition system lines are recon-
nected securely.
(4) When cleaning the engine compartment, be espe-
cially careful to protect the electrical system from
water.
(b) Precautions when handling the oxygen sensor.
(1) Do not allow the oxygen sensor to drop or hit
against an object.
(2) Do not allow the sensor to come into contact with
water.
5. IF VEHICLE IS EQUIPPED WITH MOBILE RADIO SYS-
TEM (HAM, CB, ETC.)
If the vehicle is equipped with a mobile communication system,
refer to the precaution in the IN section.
6. AIR INDUCTION SYSTEM
(a) Separation of the engine oil dipstick, oil filler cap, PCV
hose, etc. may cause the engine out of tune.
(b) Disconnection, looseness or cracks in the parts of the air
induction system between the throttle body and cylinder
head will cause air suction and cause the engine out of
tune.
7. ELECTRONIC CONTROL SYSTEM
(a) Before removing MFI wiring connectors, terminals, etc.,
first disconnect the power by either turning the ignition
switch to LOCK or disconnecting the negative (-) terminal
cable from the battery.
