oil pressure TOYOTA AVENSIS 2002 User Guide

A53763
E2PSW
10±38
±
ENGINE CONTROL SYSTEM SFI SYSTEM(1AZ±FSE)
AVENSIS REPAIR MANUAL (RM1018E)
2.INSPECT POWER STEERING OIL PRESSURE SEN- SOR
(a)Using a voltmeter, measure the voltage between termi-
nals PSW and E2.
Voltage:
ConditionVoltage (V)
Not spin the steering wheel at engine idling9 to 14
Spin the steering wheel at engine idling0 to 3
3.INSPECT THROTTLE BODY
(a)Inspect the throttle control motor for operating sound.(1)Turn the ignition switch ON.
(2)When turning the accelerator pedal position sensor lever, check the running sound of the motor.Also, check that there is no friction sound.
If operation is not as specified, check the throttle control motor (See page 10±39), wiring and ECM.
(b) Inspect the throttle position sensor.
(1) Connect the hand±held tester to the DLC3.
(2) Turn the ignition switch ON.
(3) When turning the accelerator pedal position sensor lever to the full±\
open position, check thatthe throttle valve opening percentage (THROTTLE POS) of the CURRENT DATA shown the
standard value.
Standard throttle valve opening percentage:
60 % or more
If operation is not as specified, check that the accelerator pedal positio\
n sensor (See page 10±39), wiring
and ECM.
If you have no hand±held tester, measure voltage between terminals (VTA1 ± E2, VTA2 ± E2) of the ECM
connector (See page 05±318).
(c) Inspect the air assist system.
(1) Start the engine and check that the CHK ENG does not light up.
(2) Allow the engine to warm up to normal operating temperature.
(3) Turn the A/C compressor ON to OFF, and check the idle speed.
Idle speed (Transmission in neutral): 700
50 rpm
NOTICE:
Perform inspection under condition without electrical load.
(d) After checking the above (b) to (d), perform the driving test and check that there is no sense of incon-
gruity.
4. INSPECT ACCELERATOR PEDAL POSITION SENSOR
(a) Connect the hand±held tester to the DLC3.
(b) Turn the ignition switch ON.
(c) Check that the voltage (ACCEL POS) of the CURRENT DATA shown the standard value.
Accelerator pedal released: 0.5 to 1.1 V
Accelerator pedal depress: 2.6 to 4.5 V
(d) Check that the voltage (ACCEL POS #2) of the CURRENT DATA shown the standard value. Accelerator pedal released: 1.2 to 2.0 V
Accelerator pedal depress: 3.4 to 5.3 V
If you have no hand±held tester, measure voltage between terminals (VPA ± EPA, VPA2 ± EPA2) of the ECM
connector (See page 05±318).

100EY±02
A60548
Air
E2
THAVG
E2G+B
30
20
10
5
3
2
1
0.5
0.3
0.2
0.1
RESISTANCE k

±20 0 20 40 60 80 10054321
(±4)(32)(68)(104)(140)(176)(212)
TEMPERATURE
C(
F)
A60549
12
Valve
± ENGINE CONTROL SYSTEMSFI SYSTEM (1ZZ±FE/3ZZ±FE)
10±3
AVENSIS REPAIR MANUAL (RM1018E)
INSPECTION
1. INSPECT MASS AIR FLOW METER
(a) Output voltage inspection.
(1) Apply battery voltage across terminals 1 (+B) and 2
(E2G).
(2) Connect the positive (+) tester probe to terminal 3
(VG), and negative (±) tester probe to terminal 2
(E2G).
(3) Blow air into the MAF meter, and check that the volt-
age output fluctuates.
(b) Resistance inspection.
(1) Using an ohmmeter, measure the resistance be-
tween terminals 4 (THA) and 5 (E2).
Resistance:
TerminalsResistanceTemperature
THA ± E213.6 to 18.4 k
±20
C (±4
F)
THA ± E22.21 to 2.69 k
20
C (68
F)
THA ± E20.49 to 0.67 k
60
C (140
F)
2. INSPECT CAMSHAFT TIMING OIL CONTROL VALVE
ASSY
(a) Resistance inspection.
(1) Using an ohmmeter, measure the resistance be-
tween terminals.
Resistance: 6.9 to 7.9
at 20
C (68
F)
(b) Movement inspection.
(1) Connect the positive (+) lead from the battery to ter-
minal 1 and negative (±) lead to terminal 2, and
check the movement of the valve.
NOTICE:
Confirm the valve does not adhere.
HINT:
Bad returning of the valve by catching of foreign objects causes
subtle pressure leak to the advanced direction. DTC can be de-
tected.

100EX±02
A75903
Air
A79035
VG
EVG
A79035
E2
EMPS
±
ENGINE CONTROL SYSTEM SFI SYSTEM(1ZZ±FE/3ZZ±FE)
10±1
AVENSIS REPAIR MANUAL (RM1018E)
SFI SYSTEM(1ZZ±FE/3ZZ±FE)
ON±VEHICLE INSPECTION
1.INSPECTMASS AIR FLOW METER
(a)If you have hand±held tester:
Inspect for operation
(1)Connect the hand±held tester to the DLC3.
(2)Turn the ignition switch ON.
(3)Blow air into the MAF meter, and check that the airflow fluctuates (MAF) of the ºDIAGNOSIS / OBD/
MOBD / DATA LIST / ALLº shown the standard val-
ue.
If operation is not as specified, check the MAF meter (See page
10±3), wiring and ECM.
(b)If you have no hand±held tester: Inspect for operation
(1)Turn the ignition switch ON.
(2)Connect the positive tester probe of the voltmeterto the terminal VG of the ECM. and the negative tes-
ter probe of the voltmeter to the terminal EVG of the
ECM.
(3)Blow air into the MAF meter, and check that the volt- age fluctuates.
If operation is not as specified, check the MAF meter (See page
10±3), wiring and ECM.
2. INSPECT POWER STEERING OIL PRESSURE SWITCH
(a) Using a voltmeter, measure the voltage between termi-
nals EMPS and E2.
Voltage:
ConditionVoltage (V)
Not spin the steering wheel at engine idling8 to 14
Spin the steering wheel at engine idling0 to 1.5

A31032
A32639
A77414
Straight
Pin
Key
Groove 14±174
± ENGINE MECHANICALCAMSHAFT (1AZ±FE)
AVENSIS REPAIR MANUAL (RM1018E)
(c) Put air pressure into the oil port with 150 kpa (1.5 kgf/cm2
21 psi), and turn the camshaft timing gear to the advance
direction (counterclockwise) by hand.
CAUTION:
Cover the paths with shop rag to avoid oil splashing.
HINT:
Depending on the air pressure, the camshaft timing gear will
turn to the advance angle side without applying force by hand.
Also, under the condition that the pressure can be hardly ap-
plied because of the air leakage from the port, there may be the
case that the lock pin could be hardly released.
(d) Remove the fringe bolt of camshaft timing gear.
NOTICE:

Be sure not to remove the other 4 bolts.

If reusing the camshaft timing gear, release the
straight pin lock first, and then install the gear.
13. INSTALL CAMSHAFT TIMING GEAR OR SPROCKET (LEADED GASOLINE)
Torque: 54 N
m (551 kgf
cm, 40 ft
lbf)
14. INSTALL CAMSHAFT TIMING GEAR ASSY
(UNLEADED GASOLINE)
(a) Put the camshaft timing gear and the camshaft together
with the straight pin off the key groove.
(b) Turn the camshaft timing gear assembly to the left direc-
tion (as shown in the illustration) while lightly pushing it to-
ward the camshaft. Push further at the position where the
pin gets into the groove.
NOTICE:
Be sure not to turn the camshaft timing gear to the retard
angle side (to the right direction).
(c) Check that there is no clearance between the gear's
fringe and the camshaft.
(d) Tighten the fringe bolt with the camshaft timing gear fixed.
Torque: 54 N
m (551 kgf
cm, 40 ft
lbf)
(e) Check that the camshaft timing gear can move to the re-
tard angle side (to the right direction), and is locked at the
most retarded position.

141BQ±01
A77339
A77284
14±240
±
ENGINE MECHANICAL CAMSHAFT(1AZ±FSE)
AVENSIS REPAIR MANUAL (RM1018E)
REPLACEMENT
1.DISCHARGE FUEL SYSTEM PRESSURE (See page 11±30)
2.REMOVE RADIATOR SUPPORT OPENING COVER
3.REMOVE ENGINE ROOM COVER SIDE
4.REMOVE ENGINE UNDER COVER RH 5.REMOVE ENGINE COVER SUB±ASSY NO.1
(a)Remove the 2 nuts and the engine cover No. 1.
6.REMOVE IGNITION COIL ASSY
(a)Remove the 4 bolts and the ignition coils.
7.REMOVE FUEL PRESSURE PULSATION DAMPER ASSY
8.REMOVE FUEL TUBE SUB±ASSY (See page 11±33)
9.REMOVE FUEL PIPE SUB±ASSY NO.1 (See page 11±52) SST 09023±12900
10.REMOVE FUEL PUMP ASSY (See page 11±52)
11.REMOVE CYLINDER HEAD COVER SUB±ASSY (See page 14±222)
12. SET NO. 1 CYLINDER TO TDC/COMPRESSION
(a) Turn the crankshaft pulley, and align its groove with timingmark 0 of the timing chain cover.

A77309
15973
481062
A56228
A77413
Advance
Side Port
A31032
14±242
± ENGINE MECHANICALCAMSHAFT (1AZ±FSE)
AVENSIS REPAIR MANUAL (RM1018E)
15. REMOVE CAMSHAFT
(a) Using several steps, loosen and remove the 10 camshaft
bearing cap bolts uniformly in the sequence shown in the
illustration.
(b) Remove 5 camshaft bearings.
(c) Remove the camshaft.
(d) Tie the timing chain as shown in the illustration.
NOTICE:

Be careful not to drop anything inside the timing
chain cover.

Do not expose the chain to water, and prevents dust.
16. REMOVE CAMSHAFT TIMING GEAR ASSY
(a) Clamp the camshaft in a vise, and make sure the cam-
shaft timing gear does not rotate.
(b) Cover all the oil ports with vinyl tape except an advance
side port shown in the illustration.
(c) Put air pressure into the oil port with 150 kpa (1.5 kgf/cm
2
21 psi), and turn the camshaft timing gear to the advance
direction (counterclockwise) by hand.
CAUTION:
Cover the ports with shop rag to avoid oil splashing.
HINT:
Depending on the air pressure, the camshaft timing gear will
turn to the advance angle side without applying force by hand.
Also, under the condition that the pressure can be hardly ap-
plied because of the air leakage from the port, there may be the
case that the lock pin could be hardly released.

A77395
Engine
Front
A77396
HookPinTurn
Disconnect
A77397
Push Turn
Plunger
±
ENGINE MECHANICAL CAMSHAFT(1AZ±FSE)
14±245
AVENSIS REPAIR MANUAL (RM1018E)
(b)Install a new gasket chain tensioner No. 1 with 2 nuts.
Torque: 9.0 N
m (92 kgf
cm,80 in.
lbf)
NOTICE:
If the hook is disengaged while installing, apply the hook
again, and then resume the installation.
(c)Turn the crankshaft counterclockwise, and check that the
pin is disengaged from the hook.
(d)Turn the crankshaft clockwise, and check the plunger is extended.
21.INSTALL CYLINDER HEAD COVER SUB±ASSY (See page 14±222)
22.INSTALL FUEL PUMP ASSY (See page 11±52)
23.INSTALL FUEL PIPE SUB±ASSY NO.1 (See page 11±52) SST 09023±12900
24.INSTALL FUEL TUBE SUB±ASSY (See page 11±30)
25.INSTALL FUEL PRESSURE PULSATION DAMPER ASSY (See page 11±52)
26. INSTALL IGNITION COIL ASSY Torque: 9.0 N
m (92 kgf
cm, 80 in.
lbf)
27. CHECK FOR ENGINE OIL LEAKS
28. INSTALL ENGINE COVER SUB±ASSY NO.1 Torque: 7.0 N
m (71 kgf
cm, 62 in.
lbf)

A32556
A62190
Advance
Side Path Retard Side
Path
Open
Close
Rubber Vinyl Tape Open Close
A62191
Advanced
Side Path Retard
Side Path
14±68
± ENGINE MECHANICALCAMSHAFT (1ZZ±FE/3ZZ±FE)
AVENSIS REPAIR MANUAL (RM1018E)
(i) Tie the timing chain with a string as shown in the illustra-
tion.
NOTICE:
Be careful not to drop anything inside the timing chain cov-
er.
15. INSPECT CAMSHAFT TIMING GEAR ASSY
(a) Check the lock of camshaft timing gear.
(1) Clamp the camshaft in a vice, and confirm the cam-
shaft timing gear is locked.
NOTICE:
Be careful not to damage the camshaft.
(b) Release lock pin.
(1) Cover 4 oil paths of the cam journal with vinyl tape
as shown in the illustration.
HINT:
The one of the 2 glooves on the cam journal is for retards (up-
per) and the rest is for advances (lower). Each groove has the
2 oil paths. Plug one of the oil paths for each groove with rubber
pieces before wrapping the cam journal with the tape.
(2) Punctuate the tape for the advance oil path and for
the retard oil path in the opposite side from the ad-
vance as shown in the illustration.
(3) Put air pressure into two broken paths (the advance
side path and the retard side path) with about 150
kPa {1.5 kgf
cm}.
CAUTION:
Cover the pathes with shop rag to avoid oil splashing.

A62192
Hold Pressure
DecompressAdvanced
Side Path Retard
Side Path
A62190
Advance
Side Path Retard Side
Path
Open
Close
Rubber Vinyl Tape Open Close
± ENGINE MECHANICALCAMSHAFT (1ZZ±FE/3ZZ±FE)
14±69
AVENSIS REPAIR MANUAL (RM1018E)
(4) Confirm if the camshaft timing gear assembly re-
volves in the timing advance direction when weak-
ening the air pressure of the timing retard path.
HINT:
When the lock pin is released, the camshaft timing gear re-
volves in the advance direction.
(5) When the camshaft timing gear comes to the most
advanced position, take out the air pressure of the
timing retard side path, and then take out that of tim-
ing advance side path.
CAUTION:
Camshaft timing assembly gear occasionally shifts to the
retard side abruptly, if the air compression of the advanced
side path is released first. It often causes the breakage of
the lock pin.
(c) Check smooth revolution
(1) Revolve the camshaft timing gear assembly within
the movable range [20
(40
CA)] except for the
most retarded position several times, and check the
smooth revolution.
CAUTION:
Be sure to perform this check by hand, instead of air pres-
sure.
(d) Check the lock in the most retarded position.
(1) Confirm that the camshaft timing gear assembly is
locked at the most retarded position.
16. REMOVE CAMSHAFT TIMING GEAR ASSY
(a) Clamp the camshaft in a vice, and confirm that the gear
is locked.
CAUTION:
Be careful not to damage the camshaft.
(b) Cover 4 oil paths of cam journal with vinyl tape as shown
in the illustration.
HINT:
The one of the 2 glooves on the cam journal is for retards (up-
per) and the rest is for advances (lower). Each groove has the
2 oil paths. Plug one of the oil paths for each groove with rubber
pieces before wrapping the cam journal with the tape.
(1) Punctuate the tape for the advance oil path and for
the retard oil path in the opposite side from the ad-
vance as shown in the illustration.

A62191
Advanced
Side Path Retard
Side Path
A62192
Hold Pressure
DecompressAdvanced
Side Path Retard
Side Path
A62193
Straight Pin Fringe Bolt
A62194
Straight Pin
Key Groove
14±70
± ENGINE MECHANICALCAMSHAFT (1ZZ±FE/3ZZ±FE)
AVENSIS REPAIR MANUAL (RM1018E)
(c) Put air pressure into two broken paths (the advance side
path and the retard side path) with about 150 kPa {1.5
kgf
cm}.
CAUTION:
Cover the paths with shop rag to avoid oil splashing.
(d) Confirm if the camshaft timing gear assembly revolves in
the timing advance direction when weakening the air
pressure of the timing retard path.
HINT:
When the lock pin is released, the camshaft timing gear re-
volves in the advance direction.
(e) When the camshaft timing gear comes to the most ad-
vanced position, take out the air pressure of the timing re-
tard side path, next, take out that of timing advance side
path.
CAUTION:
Camshaft timing gear assembly occasionally shifts to the
retard side abruptly, if the air compression of the advanced
side path is released first. It often causes the breakage of
the lock pin.
(f) Remove the fringe bolt of camshaft timing gear assembly.
NOTICE:

Be sure not to remove the other 4 bolts.

In case of reusing the camshaft timing gear, release
the straight pin lock first, and then install the gear.
17. INSTALL CAMSHAFT TIMING GEAR ASSY
(a) Put the camshaft timing gear assembly and the camshaft
together with the straight pin off the key groove.
(b) Turn the camshaft timing gear assembly clockwise (as
shown in the illustration) while pushing it lightly against
the camshaft. Push further at the position where the pin
gets into the groove.
CAUTION:
Be sure not to turn the camshaft timing gear to the retard
angle side (to the right angle).