sensor TOYOTA AVENSIS 2003 Service Repair Manual
[x] Cancel search | Manufacturer: TOYOTA, Model Year: 2003, Model line: AVENSIS, Model: TOYOTA AVENSIS 2003Pages: 2234, PDF Size: 56.77 MB
Page 600 of 2234
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ENGINE MECHANICALENGINE(1AZ±FE)
14±103
AVENSIS REPAIR MANUAL (RM1018E)
(3)While cranking the engine, measure the compres-
sion pressure.
Compression pressure:
1,300 kPa (13.3 kgf/cm
2, 189 psi)
Minimum pressure:
1000 kPa (10.2 kgf/cm
2, 145 psi)
Difference between each cylinder:
100 kPa (1.0 kgf/cm
2, 14 psi)
NOTICE:
Always use a fully charged battery to obtain engine
speed of 250 rpm or more.
Check other cylinder's compression pressure in the
same way.
This measurement must be done in as short a time as
possible.
(4)If the cylinder compression is low, pour a small amount of engine oil into the cylinder through the
spark plug hole and inspect again.
HINT:
If adding oil increases the compression, the piston rings
and/or cylinder bore may be worn or damaged.
If pressure stays low, a valve may be sticking or seating
improperly, or there may be leakage past the gasket.
10.INSPECT CO/HC
(a)Start the engine.
(b)Run the engine at 2,500 rpm for approximately 180 seconds.
(c)Insert CO/HC meter testing probe at least 40 cm (1.3 ft) into the tail\
pipe during idling.
(d)Check CO/HC concentration at idle. Idle CO concentration: 0 to 0.5 %
Idle HC concentration: Applicable local regulation
(e)If the CO/HC concentration does not conform to specifications, perform troubleshooting in the order given below.
(1)Check heated oxygen sensor operation. (See page 12±6)
(2) See the table below for possible causes, and then inspect and repair the applicable causes ifnecessary.
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Page 601 of 2234
14±104
±
ENGINE MECHANICAL ENGINE (1AZ±FE)
AVENSIS REPAIR MANUAL (RM1018E) CO
HCProblemsCauses
NormalHighRough idle
1. Faulty ignitions:
Incorrect timing
Fouled, shorted or improperly gapped plugs
2. Incorrect valve clearance
3. Leaks in intake and exhaust valves
4. Leaks in cylinders
LowHighRough idle
(Fluctuating HC reading)
1. Vacuum leaks:
PCV hoses
Intake manifold
Throttle body
ISC valve
Brake booster line
2. Lean mixture causing misfire
HighHighRough idle
(Black smoke from exhaust)
1. Restricted air filter
2. Plugged PCV valve
3. Faulty EFI systems:
Faulty pressure regulator
Defective water temperature sensor
Defective mass air flow meter
Faulty ECM
Faulty injectors
Faulty throttle position sensor
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Page 604 of 2234
A79033
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ENGINE MECHANICALENGINE(1AZ±FSE)
14±183
AVENSIS REPAIR MANUAL (RM1018E)
(e)Inspect cylinder compression pressure.
SST09992±00500
(1)Insert a compression gauge into the spark plughole.
(2)Fully open the throttle.
(3)While cranking the engine, measure the compres- sion pressure.
Compression pressure:
1,300 kPa (13.3 kgf/cm
2, 189 psi)
Minimum pressure:
1000 kPa (10.2 kgf/cm
2, 145 psi)
Difference between each cylinder:
100 kPa (1.0 kgf/cm
2, 14 psi)
NOTICE:
Always use a fully charged battery to obtain engine
speed of 250 rpm or more.
Check other cylinder's compression pressure in the
same way.
This measurement must be done in as short a time as
possible.
(4)If the cylinder compression is low, pour a small amount of engine oil into the cylinder through the
spark plug hole and inspect again.
HINT:
If adding oil increases the compression, the piston rings
and/or cylinder bore may be worn or damaged.
If pressure stays low, a valve may be sticking or seating
improperly, or there may be leakage past the gasket.
10.INSPECT CO/HC
(a)Start the engine.
(b)Run the engine at 2,500 rpm for approximately 180 seconds.
(c)Insert CO/HC meter testing probe at least 40 cm (1.3 ft) into the tail\
pipe during idling.
(d)Check CO/HC concentration at idle. Idle CO concentration: 0 to 0.5 %
Idle HC concentration: Applicable local regulation
(e)If the CO/HC concentration does not conform to specifications, perform troubleshooting in the order given below.
(1)Check heated oxygen sensor operation. (See page 12±6)
(2) See the table below for possible causes, and then inspect and repair the applicable causes ifnecessary.
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Page 605 of 2234
14±184
±
ENGINE MECHANICAL ENGINE (1AZ±FSE)
AVENSIS REPAIR MANUAL (RM1018E) CO
HCProblemsCauses
NormalHighRough idle
1. Faulty ignitions:
Incorrect timing
Fouled, shorted or improperly gapped plugs
2. Incorrect valve clearance
3. Leaks in intake and exhaust valves
4. Leaks in cylinders
LowHighRough idle
(Fluctuating HC reading)
1. Vacuum leaks:
PCV hoses
Intake manifold
Throttle body
ISC valve
Brake booster line
2. Lean mixture causing misfire
HighHighRough idle
(Black smoke from exhaust)
1. Restricted air filter
2. Plugged PCV valve
3. Faulty EFI systems:
Faulty pressure regulator
Defective water temperature sensor
Defective mass air flow meter
Faulty ECM
Faulty injectors
Faulty throttle position sensor
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Page 611 of 2234
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ENGINE MECHANICAL ENGINE (1ZZ±FE/3ZZ±FE)
14±3
AVENSIS REPAIR MANUAL (RM1018E)
(3) While cranking the engine, measure the compres-
sion pressure.
Compression pressure
1,300 kPa (13.3 kgf cm
2, 189 psi)
Minimum pressure: 1,000 kPa (10.2 kgf cm
2, 145 psi)
Difference between each cylinder:
100 kPa (1.0 kgf cm
2, 14 psi)
NOTICE:
Always use a fully charged battery to obtain engine
speed of 250 rpm or more.
Check other cylinder's compression pressure in the
same way.
This measurement must be done in as short a time as
possible.
(4) If the cylinder compression in one or more cylinders is low, pour a small amount of engine oil into the cyl-
inder through the spark plug hole and repeat steps
(1) through (3) for the cylinders that have low com-
pression.
HINT:
If adding oil helps increase the compression, the piston
rings and/or cylinder bore may be worn or damaged.
If pressure stays low, a valve may be sticking or seating
improperly, or there may be leakage past the gasket.
10. INSPECT CO/HC
(a) Start the engine.
(b) Run the engine at 2,500 rpm for approximately 180 seconds.
(c) Insert CO/HC meter testing probe at least 40 cm (1.3 ft) into the tail\
pipe during idling.
(d) Check CO/HC concentration at idle.
Idle CO concentration: 0 to 0.5 %
Idle HC concentration: Applicable local regulation
If the CO/HC concentration does not conform to specifications, perform tro\
ubleshooting in the order given
below.
Check heated oxygen sensor operation.
See the table below for possible causes, and then inspect and repair the applicable causes if
necessary.
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Page 612 of 2234
14±4
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ENGINE MECHANICAL ENGINE (1ZZ±FE/3ZZ±FE)
AVENSIS REPAIR MANUAL (RM1018E) CO
HCProblemsCauses
NormalHighRough idle
1. Faulty ignitions:
Incorrect timing
Fouled, shorted or improperly gapped plugs
2. Incorrect valve clearance
3. Leaks in intake and exhaust valves
4. Leaks in cylinders
LowHighRough idle
(Fluctuating HC reading)
1. Vacuum leaks:
PCV hoses
Intake manifold
Throttle body
ISC valve
Brake booster line
2. Lean mixture causing misfire
HighHighRough idle
(Black smoke form exhaust)
1. Restricted air filter
2. Plugged PCV valve
3. Faulty EFI systems:
Faulty pressure regulator
Defective water temperature sensor
Defective mass air flow meter
Faulty ECM
Faulty injectors
Faulty throttle position sensor
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Page 632 of 2234
A79295
N´m (kgf´cm, ft´lbf): Specified torque
Non±reusable part
5.0 (50, 43 in. lbf)
O±ring
Gasket
Gasket
Gasket
Gasket
O±ring
15 (153, 11)
20 (204, 15)
9.0 (92, 80 in. lbf)
9.0 (92, 80 in. lbf)
Fuel Delivery Pipe
w/ Injector
Oil Control Valve Knock Control Sensor Spacer
Water By±pass Pipe No. 1 Oil Level Gauge
Sub±assy
Oil Level Gauge Guide
Water Inlet
9.0 (92, 79 in. lbf)Engine Oil Pressure Switch Assy
Water Temperature Sensor
Thermostat
9.0 (92, 80 in. lbf)
19 (194, 14)
19 (194, 14)
20 (204, 15)
14±120
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ENGINE MECHANICAL PARTIAL ENGINE ASSY (1AZ±FE)
AVENSIS REPAIR MANUAL (RM1018E)
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Page 641 of 2234
A77332
23
145
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ENGINE MECHANICALPARTIAL ENGINE ASSY(1AZ±FE)
14±129
AVENSIS REPAIR MANUAL (RM1018E)
91.REMOVE KNOCK SENSOR
(a)Remove the nut and the knock sensor.
92.REMOVE ENGINE COOLANT TEMPERATURE SENSOR
(a)Using SST, remove the engine coolant temperature sensor.
SST09817±33190
93.REPLACE PARTIAL ENGINE ASSY
94.INSTALL ENGINE COOLANT TEMPERATURE SENSOR
(a)Install a new gasket to the engine coolant temperature sensor.
(b)Install the engine coolant temperature sensor. Torque: 20 N m (208 kgfcm,15 ftlbf)
SST09817±33190
95.INSTALL KNOCK SENSOR
Torque: 20 N m (208 kgfcm,15 ftlbf)
96.INSTALL ENGINE OIL PRESSURE SWITCH ASSY
(a)Clean the threads of the oil pressure switch, apply adhesive there. Adhesive: Part No. 08833±00080 THREE BOND 1344 or equivalent
(b)Install the oil pressure switch. Torque: 15 N m (153 kgfcm,11 ftlbf)
97.INSTALL WATER BY±PASS PIPE NO.1
(a)Install a new gasket and the water by±pass pipe No. 1 with the bolt a\
nd 2 nuts. Torque: 9.0 N m (92 kgfcm,80 in. lbf)
98.INSTALL FUEL DELIVERY PIPE W/INJECTOR (See page 11±26)
99.INSTALL DRIVE SHAFT BEARING BRACKET Torque: 54 N m (551 kgfcm,40 ftlbf)
100.INSTALL V±RIBBED BELT TENSIONER ASSY
Torque: 60 N m (607 kgfcm,44 ftlbf)
101.INSTALL IGNITION COIL ASSY Torque: 9.0 N m (92 kgfcm,80 in. lbf)
102.INSTALL THERMOSTAT (See page 16±23)
103. INSTALL WATER INLET
Torque: 9.0 N m (92 kgf cm, 80 in. lbf)
104. I N S TA L L E X HAUST MANIFOLD CONVERTER
SUB±ASSY
(a) Install a new gasket and the exhaust manifold converter
with the 5 nuts.
Torque: 37 N m (378 kgf cm, 27 ftlbf)
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Page 646 of 2234
14±134
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ENGINE MECHANICALPARTIAL ENGINE ASSY(1AZ±FE)
AVENSIS REPAIR MANUAL (RM1018E)
155.INSTALL RADIATOR ASSY (See page 16±24)
156.INSTALL RADIATOR RELAY BLOCK Torque: 5.0 N m (51 kgfcm,44 in. lbf)
157.INSTALL ENGINE COVER SUB±ASSY NO.1 Torque: 7.0 N m (71 kgfcm,62 in. lbf)
158.ADD MANUAL TRANSAXLE OIL (M/T TRANSAXLE)
159.ADD AUTOMATIC TRANSAXLE FLUID (A/T TRANSAXLE)
160.ADD ENGINE OIL
161.ADD COOLANT (See page 16±19)
162. ADD POWER STEERING FLUID
163. BLEED POWER STEERING FLUID
164. CHECK FOR ENGINE OIL LEAKS
165.CHECK FOR ENGINE COOLANT LEAKS (See page 16±13)
166.CHECK FOR FUEL LEAKS (See page 11±15)
167. INSTALL FRONT WHEELS Torque: 103 N m (1,050 kgfcm, 76 ft lbf)
168.ADJUST FRONT WHEEL ALIGNMENT (See page 26±6)
169.INSPECT CHECK IDLE SPEED AND IGNITION TIMING (See page 14±101)
170.INSPECT CO/HC (See page 14±101)
171. CHECK ABS SPEED SENSOR SIGNAL
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Page 654 of 2234
A79423
N´m (kgf´cm, ft´lbf): Specified torque
Non±reusable part
Gasket
O±ring
* Use SST
Gasket
Gasket
Gasket
Gasket
Gasket3.6 to 6.9 (40 to 70, 35 to 61 in. lbf)
5.0 (51, 44 in. lbf)
7.4 (76, 66 in. lbf)
* 31 (316, 23)
34 (347, 25)
43 (438, 32)
21 (214, 15)
18 (184, 13)
21 (214, 15)
21 (214, 15)
21 (214, 15)
64 (650, 47)
21 (214, 15)
* 31 (316, 23)
34 (347, 25)
* 31 (316, 23)
34 (347, 25)
Injection Pipe Clamp No. 2
Injection Pipe Sub±assy
* 31 (316, 23)
34 (347, 25)
Common Rail Assy
Fuel Hose No. 4
Vacuum Pump Assy
Nozzle Leakage Pipe No. 2 Fuel Inlet Pipe Sub±assy
EGR Valve AssyWater Outlet Sub±assy
Engine Coolant
Temperature Sensor
Intake Air Connector Sub±assy Intake Manifold
Wiring Harness Clamp Bracket
Injection Pump
Drive Pulley
Timing Belt
No. 3 Cover
Seal Washer
Camshaft Position Sensor
Check Valve
8.8 (90, 78 in.
lbf)
8.8 (90, 78 in.lbf)
21 (214, 15)
21 (214, 15)
14±284
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ENGINE MECHANICAL PARTIAL ENGINE ASSY (1CD±FTV)
AVENSIS REPAIR MANUAL (RM1018E)
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