engine TOYOTA CAMRY 2000 Service Workshop Manual

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2. CONNECT TACHOMETER AND TIMING LIGHT TO
ENGINE
Connect the test probe of a tachometer to terminal IG
(±) of the data link connector 1.
NOTICE:
wNEVER allow the tachometer terminal to touch
ground as it could result in damage to the igniter
and/or ignition coif.
wAs some tachometers are not compatible with this
Ignition system, we recommend that you confirm
the compatibility of yours before use.
3. ADJUST IGNITION TIMING
(a) Using SST, connect terminals TE1 and E1 of the data
link connector 1.
SST 09843±18020
HINT: After engine speed is kept at 1,000 ± 1,300
rpm for 5 seconds, check that it returns to idle speed.
IGNITION TIMING INSPECTION AND
ADJUSTMENT
1. WARM UP ENGINE
Allow the engine to warm up to normal operating
temperature.
(b) Using a timing light, check the ignition timing.
Ignition timing:
10

BTDC @ idle
(Transmission in neutral position)
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4. FURTHER CHECK IGNITION TIMING
Ignition timing:
0 ± 10
BTDC @ idle
(Transmission in neutral position)
HINT: The timing mark moves in a range between 0

and 10
. (c) Loosen the bolt (California) or 2 bolts (except Califor±
nia), and adjust by turning the distributor.
(d) Tighten the bolt (California) or 2 bolts (except Califor±
nia), and recheck the ignition timing.
Torque: 19 N±m (195 kgf±cm, 14 ft±lbf)
5. DISCONNECT TACHOMETER AND TIMING LIGHT
FROM ENGINE(e) Remove the SST.
SST 09843±18020
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IDLE SPEED INSPECTION
1. INITIAL CONDITIONS
(a) Engine at normal operating temperature
(b) Air cleaner installed
(c) All pipes and hoses of air induction system connected
(d) All vacuum lines properly connected
(e) MFI/SFI system wiring connectors fully plugged
(f) All operating accessories switched OFF
(g) Ignition timing set correctly
(h) Transmission in neutral position
2. CONNECT TACHOMETER
Connect the test probe of a tachometer to terminal IG
(±) of the data link connector 1.
NOTICE:
wNever allow the tachometer terminal to touch
ground as it could result in damage to the Igniter
and/or ignition coil.
wAs some tachometers are not compatible with this
ignition system, we recommend that you confirm
the compatibility of yours before use.
(b) Check the idle speed.
Idle speed (w/ Cooling fan OFF):
750+50 rpm
If the idle speed is not as specified, check the IAC
system.
4. DISCONNECT TACHOMETER 3. INSPECT IDLE SPEED
(a) Race the engine at 2,500 rpm for approx. 90 seconds.
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IDLE AND OR 2,500 RPM CO/HC
CHECK
HINT: This check is used only to determine whether or
not the idle CO/HC complies with regulations.
1. INITIAL CONDITIONS
(a) Engine 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) MFI/SFI system wiring connectors fully plugged
(g) Ignition timing set correctly
(h) Transmission in neutral position
(i) Tachometer and CO/HC meter calibrated by hand.
4. INSERT CO/HC METER TESTING PROBE AT LEAST
40 cm (1.3 ft) INTO TAILPIPE DURING IDLING
5. IMMEDIATTELY CHECK CO/HC CONCENTRATION
AT IDLE AND/OR 2,500 RPM
Complete the measuring within 3 minutes.
HINT: When performing the 2 mode (2,500 rpm and
idle) test, follow the measurement order prescribed by
the applicable local regulations. 2. START ENGINE
3. RACE ENGINE AT 2,500 RPM FOR APPROX. 180
SECONDS
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Troubleshooting
If the CO/HC concentration does not comply with
regulations, perform troubleshooting in the order
given below.
(a) Check oxygen sensor operation.
(See page EG1±231)
(b) See the table below for possible causes, then inspect
and correct the applicable causes if necessary.
1. Faulty ignitions:
wIncorrect timing
wFouled, shorted or improperly gapped plugs
wOpen or crossed high±tension cords
wCracked distributor cap
2. Incorrect valve clearance
3. Leaky EGR valve
4. Leaky intake and exhaust valves
5. Leaky cylinder
1. Restricted air filter
2. Faulty MFI/SFI systems
wFaulty pressure regulator
wClogged fuel return line
wDefective engine coolant temp. sensor
wDefective intake air temp. sensor
wFaulty ECM
wFaulty injector
wFaulty throttle position sensor
wMAP sensor 1. Vacuum leaks:
wPCV hose
wEGR valve
wIntake manifold
wThrottle body
w!AC valve
wBrake booster line
2. Lean mixture causing misfire
Rough idle
(Black smoke from exhaust) Rough idle
(Fluctuating HC reading) Rough idleProblems
Causes
Normal
High High High
HighLow
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5. CHECK CYLINDER COMPRESSION PRESSURE
(a) Insert a compression gauge into the spark plug hole.
(b) Fully open the throttle.
(c) While cranking the engine, measure the compression
pressure.
HINT: Always use a fully charged battery to obtain
engine speed of 250 rpm or more.
(d) Repeat steps
(a) through
(c) for each cylinder.
NOTICE: This measurement must be done in as short a
time as possible.
Compression pressure:
1,226 kPa (12.5 kgf/cm
. 178 psi) or more
Minimum pressure:
981 kPa (10.0 kgf/cm
, 142 psi)
Difference between each cylinder:
98 kPa (1.0 kgf/cm
. 14 psi) or less
COMPRESSION CHECK
HINT: If there is lack of power, excessive oil consump±
tion or poor fuel economy, measure the compression
pressure.
1. WARM UP AND STOP ENGINE
Allow the engine to warm up to normal operating
temperature.
2. DISCONNECT DISTRIBUTOR CONNECTOR(S)
3. DISCONNECT HIGH ±TENSION CORDS FROM
SPARK PLUGS
Disconnect the high ± tension cords at the rubber
boot.
DO NOT pull on the cords.
NOTICE: Pulling on or bending the cords may damage the
conductor inside.
4. REMOVE SPARK PLUGS
Using a 16 mm plug wrench, remove the spark plug.
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(e) If the cylinder compression in one or more cylinders is
low, pour a small amount of engine oil into the cylin±
der through the spark plug hole and repeat steps (a)
through
(c) for cylinders with low compression.
wIf adding oil helps the compression, chances are
that the piston rings and/or cylinder bore are
worn or damaged.
wIf pressure stays low, a valve may be sticking or
seating is improper, or there may be leakage past
the gasket.
6. REINSTALL SPARK PLUGS
Using a 16 mm plug wrench, install the spark plug.
Torque: 18 N±m (180 kgf±cm, 13 ft±lbf)
7. RECONNECT HIGH±TENSION CORDS TO SPARK
PLUGS
8. RECONNECT DISTRIBUTOR CONNECTOR(S)
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TIMING BELT
COMPONENTS FOR REMOVAL AND
INSTALLATION
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TIMING BELT REMOVAL
(See Components for Removal and Installation)
1. DISCONNECT NEGATIVE (±) TERMINAL CABLE
FROM BATTERY
CAUTION: Work must be started after 90 seconds from
the time the ignition switch is turned to the 'LOCK'
position and the negative (±) terminal cable is discon±
nected from the battery.
2. REMOVE ENGINE COOLANT RESERVOIR TANK
(a) Disconnect the reservoir hose.
(b) While pushing the tab of the bracket, remove the
reservoir tank.
3. REMOVE GENERATOR (See page CH±10)
4. REMOVE RH FRONT WHEEL
5. REMOVE RH FENDER APRON SEAL
8. REMOVE ENGINE MOVING CONTROL ROD
Remove the 3 bolts and control rod.
9. DISCONNECT CONNECTOR FROM GROUND WIRE
ON RH FENDER APRON7. SLIGHTLY JACK UP ENGINE
Raise the engine enough to remove the weight from
the engine mounting on the right side. 6. REMOVE PS DRIVE BELT
Loosen the 2 bolts, and remove the drive belt.
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