2003 TOYOTA AVENSIS spark plugs

TA C
A52006
A13304
14±102
±
ENGINE MECHANICAL ENGINE (1AZ±FE)
AVENSIS REPAIR MANUAL (RM1018E)
(5) Disconnect terminals 13 (TC) and 4 (CG) of DLC3.
(6) Inspect ignition timing at idle.
Ignition timing: 5 to 15  BTDC
(7) Confirm that ignition timing to go advanced angle side when the engine rpm is increased.
(8) Remove the timing light.
8. INSPECT ENGINE IDLE SPEED
(a) Warm up engine.
(b) When using hand±held tester:
(1) Connect the hand±held tester to the DLC3.
Idle speed: 650 to 750 rpm
NOTICE:

Check the idle speed with the cooling fan OFF.

Switch off all accessories and air conditioning before
connecting the test prove to the terminal.
HINT:
Please refer to the hand±held tester operator's manual if you
need help to select DATA LIST.
(c) When not using hand±held tester.
(1) Using SST, connect the tachometer test prove toterminal 9 (TAC) of DLC3.
SST 09843±18040
(2) Check the idle speed.
Idle speed: 650 to 750 rpm
9. INSPECT COMPRESSION
(a) Warm up and stop the engine.
(b) Disconnect the injector connectors.
(c) Remove the ignition coil.
(d) Remove the spark plugs.
(e) Inspect cylinder compression pressure. SST 09992±00500
(1) Insert a compression gauge into the spark plughole.
(2) Fully open the throttle.
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TA C
A52006
14±182
±
ENGINE MECHANICAL ENGINE (1AZ±FSE)
AVENSIS REPAIR MANUAL (RM1018E)
(6) Inspect ignition timing at idle.
Ignition timing: 5 to 23  BTDC
(7) Confirm that ignition timing to go advanced angle
side when the engine rpm is increased.
(8) Remove the timing light.
8. INSPECT ENGINE IDLE SPEED
(a) Warm up engine.
(b) When using hand±held tester: (1) Connect the hand±held tester to the DLC3.
Idle speed: 625 to 725 rpm
NOTICE:

Check the idle speed with the cooling fan OFF.

Switch off all accessories and air conditioning before
connecting the test prove to the terminal.
HINT:
Please refer to the hand±held tester operator's manual if you
need help to select DATA LIST.
(c) When not using hand±held tester: (1) Using SST, connect the tachometer test prove toterminal 9 (TAC) of DLC3.
SST 09843±18040
(2) Check the idle speed.
Idle speed: 625 to 725 rpm
9. INSPECT COMPRESSION
(a) Warm up and stop the engine.
(b) Disconnect the injector connectors.
(c) Remove the ignition coil.
(d) Remove the spark plugs.
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TA C
A52006
A01037
14±2
±
ENGINE MECHANICAL ENGINE (1ZZ±FE/3ZZ±FE)
AVENSIS REPAIR MANUAL (RM1018E)
(5) Inspect ignition timing at idle.
Ignition timing: 8 to 12 BTDC
NOTICE:
When checking the ignition timing, shift the transmission
to the neutral position.
HINT:
Run the engine at 1,000 to 1,300 rpm for 5 seconds, check that
the engine rpm returns to the idle speed.
(6) Disconnect the terminal 13 (TC) and 4 (CG) of theDLC3.
(7) Inspect ignition timing at idle.
Ignition timing:
10 to 18 BTDC (1ZZ±FE)
3.5 to 11.5 BTDC (3ZZ±FE)
(8) Confirm that ignition timing to go advanced angle side when the engine rpm is increased.
(9) Remove the timing light.
(10) Install the cylinder head cover with the 2 nuts and 2 clips.
Torque: 7.0 N
m (71 kgf
cm, 62 in.
lbf)
8. INSPECT ENGINE IDLE SPEED
(a) Warm up engine.
(b) When using hand±held tester: (1) Connect the hand±held tester to the DLC3.
HINT:
Please refer to the hand±held tester operator's manual if you
need help to select DATA LIST.
(c) When not using hand±held tester:
(1) Using SST, connect the tachometer test prove toterminal 9 (TAC) of DLC3.
SST 09843±18040
(d) Check the idle speed. Idle speed: 600 to 700 rpm
NOTICE:

Check the idle speed with the cooling fan OFF.

Switch off all accessories and air conditioning before
connecting the test prove to the terminal.
9. INSPECT COMPRESSION
(a) Warm up and stop the engine.
(b) Remove the ignition coil.
(c) Remove the spark plugs.
(d) Inspect cylinder compression pressure. SST 09992±00500
(1) Insert a compression gauge into the spark plughole.
(2) Fully open the throttle.
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140KL±01
A62179
A62185
MarkMark
Mark Timing Chain
Cover Surface
Groove
14±4
±
ENGINE MECHANICAL PARTIAL ENGINE ASSY (1ZZ±FE/3ZZ±FE)
1ZZ±FE,3ZZ±FE ENGINE REPAIR MANUAL
(RM923E)
OVERHAUL
1. REMOVE OIL FILLER CAP SUB±ASSY
(a) Remove the oil filler cap from the cylinder head cover.
2. REMOVE OIL FILLER CAP GASKET
(a) Remove the gasket from the oil filler cap.
3. REMOVE VENTILATION VALVE SUB±ASSY
(a) Remove the ventilation valve from the cylinder head cover.
4. REMOVE SPARK PLUG
(a) Using a spark plug wrench, remove the 4 spark plugs.
5. REMOVE CYLINDER HEAD COVER SUB±ASSY
(a) Remove the 9 bolts, 2 seal washer, 2 nuts and cylinder head cover.
6. REMOVE CYLINDER HEAD COVER GASKET
(a) Remove the gasket from the cylinder head cover. 7. REMOVE WATER PUMP ASSY
(a) Remove the 6 bolts, water pump and O±ring.
8. REMOVE CRANKSHAFT PULLEY
(a) Set No. 1 cylinder to TDC/compression.(1) Turn the crankshaft pulley, and align its groove with
timing mark º0º of the timing chain cover.
(2) Check that the point marks of the camshaft timing sprocket and VVT timing sprocket are in straight line
on the timing chain cover surface as shown in the
illustration.
HINT:
If not, turn the crankshaft 1 revolution (360
) and align the
marks as above.
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A62181
PlungerTurn
Push
A10085
A62182
Seal Packing
14±26
±
ENGINE MECHANICAL PARTIAL ENGINE ASSY (1ZZ±FE/3ZZ±FE)
1ZZ±FE,3ZZ±FE ENGINE REPAIR MANUAL
(RM923E)
(4) Turn the crankshaft clockwise, and check that the slipper is pushed by the plunger.
HINT:
If the plunger does not spring out, press the slipper into the
chain tensioner with a screwdriver or your finger so that the
hook is released from the knock pin and the plunger springs out.
66. INSTALL CYLINDER HEAD COVER SUB±ASSY
(a) Install the gasket to the cylinder head cover.
(b) Remove any old packing (FIPG) material.
(c) Apply seal packing to 2 locations as shown in the illustra- tion.
Seal packing: Part No. 08826±00080 or equivalent
NOTICE:

Remove any oil from the contact surface.

Install the cylinder head cover within 3 minutes after
applying seal packing.

Do not put into engine oil 2 hours after installing.
(d) Install the cylinder head cover and cable bracket with the 9 bolts, 2 seal washers and 2 nuts
Uniformly tighten the bolts and nuts, in the several
passes.
Torque:
w/o washer 11 N
m (112 kgf
cm, 8 ft
lbf)
w/ washer 9.0 N
m (92 kgf
cm, 80 in
lbf)
67. INSTALL SPARK PLUG
(a) Using a spark lug wrench, install the 4 spark plugs. Torque: 25 N
m (255 kgf
cm, 18 ft
lbf)
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1807M±01
CHECK POWER SUPPLY TO IGNITION COIL WITHSENSOR (See page 18±9)
SPARK TEST
Replace crankshaft position sensor.
CHECK RESISTANCE OF CAMSHAFT POSITION
1. Turn ignition switch ON.
2. Check that there is battery voltage at ignition coil positive (+) terminal.
CHECK CONNECTION OF IGNITION COIL WITH IGNITER
Resistance: ColdHot
1,060 to 1,645

CHECK RESISTANCE OF CRANKSHAFT POSITION
Resistance: ColdHot
985 to 1,600
1,265 to 1,890

CHECK IGT SIGNAL FROM ECM
(See page 05±232)
REPAIR WIRING BETWEEN IGNITION COIL AND ECM Connect securely.
Check wiring between ignition switch to ignition coil with igniter.
Check ECM (See page 01±32)
NG
OK
OK
OK
OK NG
NG
NG
NG
NG
SENSOR (See page 18±9 )
835 to 1,400


IGNITER
CHANGE IT TO NORMAL IGNITION COIL WITH IGNITER
AND PERFORM SPARK TEST AGAIN
OK
Replace ignition coil with igniter.
NG
OK
CONNECTOR
Replace camshaft position sensor.
±
IGNITIONIGNITION SYSTEM(1AZ±FE)
18±7
AVENSIS REPAIR MANUAL (RM1018E)
IGNITION SYSTEM(1AZ±FE)
ON±VEHICLE INSPECTION
NOTICE:
ºColdº and ºHotº in this section mean the temperature of the coils thems\
elves.ºColdº is from ±10C
(14F) to 50 C (122 F) and ºHotº is from 50 C (122 F) to 100 C (212 F).
1.INSPECT IGNITION COIL (WITH IGNITER) AND SPARK TEST
(a)Check for DTCs.
NOTICE:
If DTC is present, perform a troubleshooting in accordance with a proced\
ure for that DTC.
(b)Check that spark occurs. (1)Remove the cylinder head cover No. 1. (See page 14±106)
(2) Remove the ignition coils (with igniter).
(3) Using a 16mm (0.63 in) plug wrench, remove the spark plugs.
(4) Install the spark plugs to each ignition coil (with igniter) and connect the \
ignition coil connectors.
(5) Disconnect the 4 injector connectors.
(6) Ground the spark plugs.
(7) Check if spark occurs at each spark plug while engine is being cranked.
NOTICE:

Be sure to ground the spark plug when checking.

Replace the ignition coil if it is given physical impact.

Do not crank the engine for more than 2 seconds.
If the sparks do not occur, do the following test:
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18±8
±
IGNITION IGNITION SYSTEM (1AZ±FE)
AVENSIS REPAIR MANUAL (RM1018E)
(c) Using a 16 mm (0.63 in.) plug wrench, install the spark plugs. Torque: 19 N
m (194 kgf
cm, 14 ft
lbf)
(d) Install the ignition coil with igniter.
Torque: 9.0 N
m (92 kgf
cm, 80 in.
lbf)
(e)Install the cylinder head cover No. 1. (See page 14±106 )
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1807N±01
A50033
P03783
P03792
IG0147
Ohmmeter
Ground
±
IGNITION IGNITION SYSTEM (1AZ±FE)
18±9
AVENSIS REPAIR MANUAL (RM1018E)
INSPECTION
1. INSPECT SPARK PLUG (EXCEPT EUROPE)
(a) Clean the spark plugs.
If the electrode has traces of wet carbon, clean the electrode
with a spark plug cleaner then dry it.
Air pressure: Below 588 kPa (6kg/cm
2, 85 psi)
Duration: 20 seconds or less
(b) Check the spark plug for any damage on its thread and insulator damage.
If there is damage, replace the spark plug. Recommended spark plug:
DENSO madeK20R±U11
NGK madeBKR6EYA11
(c) Adjust electrode gap.Electrode gap: 1.0 to 1.1 mm (0.039 to 0.043 in.)
2. INSPECT SPARK PLUG (FOR EUROPE)
NOTICE:

Do not use a wire brush for cleaning.

Do not attempt to adjust the electrode gap of a used
spark plug.

Spark plug should be replaced every 100,000 km
(60,000 miles).
(a) Check the electrode. (1) Using an ohmmeter, measure the insulation resis-tance.
Correct insulation resistance: 10 M
or more
If the resistance is less then the specified valve, proceed to step
(d).
HINT:
If the ohmmeter is not available, perform the following alterna-
tive inspection. This provides also fairly accurate results.
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