2003 TOYOTA AVENSIS check

No.1 Fuel Pipe
Fuel Tube Connector
SST
(Clip)
SST (T joint)SST
SST
(Hose)
B12975
11±20
±
FUEL FUEL SYSTEM (1AZ±FE)
AVENSIS REPAIR MANUAL (RM1018E)
(g) Install SST (pressure gauge) and a fuel tube connector using SST as shown in the illustration.
SST 09268±41047(95336±08070),09268±45014 (09268±41250, 09268±41200, 09268±41220)
(h) Wipe up any gasoline.
(i) Reconnect the negative (±) battery cable.
(j) Connect the hand±hand tester to the DLC3.
(k) Measure the fuel pressure. Fuel pressure:
304 to 343 kPa (3.1 to 3.5 kgf/cm
2, 44 to 50 psi)
If pressure is high, replace the fuel pressure regulator.
If pressure is low, check the fuel hoses connections, the fuel
pump, the fuel filter and the fuel pressure regulator.
(l) Disconnect the hand±held tester from the DLC3.
(m) Start the engine.
(n) Measure the fuel pressure at idle. Fuel pressure:
304 to 343 kPa (3.1 to 3.5 kgf/cm
2, 44 to 50 psi)
(o) Stop the engine.
(p) Check that the fuel pressure remains as specified for 5 minutes after the engine has stopped.
Fuel pressure:147 kPa (1.5 kgf/cm
2, 21 psi) or more
If pressure is not as specified, check the fuel pump, the pres-
sure regulator and/or the injectors.
(q) After checking the fuel pressure, disconnect the negative (±) battery cable and carefully remove SST and the fuel
tube connector to prevent gasoline from splashing.
(r) Reconnect the No. 1 fuel pipe (fuel tube connector).
CAUTION:
After taking the precautions, connect the fuel tube con-
necter (quick type).
2. CHECK FUEL PUMP OPERATION AND FUEL LEAK
(a) When using the hand±held tester (1) Connect the hand±held tester to the DLC3.
(2) Turn the ignition switch ON and the hand±held tes-
ter main switch ON.
NOTICE:
Do not start the engine. (3) Select the active test mode on the hand±held tester.
(4) Perform the active test. Check that the fuel pumpoperates and check for fuel leaks.
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A75342
Battery4
5
±
FUEL FUEL SYSTEM (1AZ±FE)
11±21
AVENSIS REPAIR MANUAL (RM1018E)
(b) When not using hand±held tester
(1) Connect the positive (+) lead form the battery to ter-minal 4 of the connector and connect the negative
(±) lead to terminal 5.
(2) Check that the pump operates.
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SST
Retainer
(at 4 places) Insert
A50705
A60083
Fuel Pipe
Clamp No.1
A
A
B12941
B12944
A82344
Vinyl Bag or plastic Bag
±
FUEL FUEL SYSTEM (1AZ±FE)
11±17
AVENSIS REPAIR MANUAL (RM1018E)
(4) Turn SST, align the retainers inside the connector
with SST chamfered parts and insert SST into the
connector.
(5) Slide SST and the connector together towards the fuel tube assembly.
(e) Observe these following precautions when disconnecting the fuel tube connector (quick type).
(1) Remove the fuel pipe clamp No.1.
(2) Check that there is no dirt or mud on the pipe and
around the connector before disconnecting them.
Clean them if necessary.
(3) Disconnect the connector from the hose while pinching part A with fingers as shown in the illustra-
tion.
(4) When the connector and the pipe are stuck, push and pull the connector to release and pull the con-
nector out from the pipe carefully.
(5) Inspect that there is no dirt or mud on the sealing
surface of the disconnected pipe. Clean it away if
necessary.
(6) To prevent the disconnected pipe and connector from being damaged and foreign objects from being
introduced, cover them with a vinyl or plastic bag.
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B16534Push
B16535Pull
11±18
±
FUELFUEL SYSTEM(1AZ±FE)
AVENSIS REPAIR MANUAL (RM1018E)
(f)Observe these precautions when connecting the fuel tube connectors (Quick Type):
(1)Check that there is no damage or foreign objects inthe connected part of the pipe.
(2)Match the axis of the connector with the axis of the pipe, and push into the connector until the connec-
tor makes a ºclickº sound. If the connection is tight,
apply little amount of fresh engine oil on the tip of the
pipe.
(3)After having finished the connection, check if the pipe and the connector are securely connected by
pulling on them.
(4)Check for fuel leaks.
4.CHECK FOR FUEL LEAKS
(a)Check that there are no fuel leaks after doing maintenance anywhere on t\
he fuel system. (See page 11±19)
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±
FUEL FUEL SYSTEM (1CD±FTV)
11±57
AVENSIS REPAIR MANUAL (RM1018E)
5. LEVEL WARNING SWITCH
(a) Continuity inspection.
(1) Using an ohmmeter, check that there is continuity between terminals.
Specified condition:
There is continuity when raising a float.
There is no continuity when letting a float down.
6. FUEL TEMPERATURE SENSOR
(a) Resistance inspection.
(1) Using an ohmmeter, measure the resistance between the terminals.
Resistance:
Approx. 20
C (68
F) 2.21 to 2.69

Approx. 80
C (176
F) 0.287 to 0.349

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SST
A50700
B00069
A16628A32859
±
FUEL FUEL SYSTEM (1ZZ±FE/3ZZ±FE)
11±9
AVENSIS REPAIR MANUAL (RM1018E)
(7) Connect SST (wire) to the injector and the battery
for 15 seconds, and measure the injection volume
with a graduated cylinder. Test each injector 2 or 3
times.
SST 09842±30080
Injection volume:
EngineInjection volumeDifference between each
injector
1ZZ±FE
60 to 73 cm3
(3.7 to 4.5 cu in.)in 15 seconds13 cm3 (0.8 cu in.) or less
3ZZ±FE
45 to 55 cm3
(2.7 to 3.3 cu in.)in 15 seconds10 cm3 (0.6 cu in.) or less
NOTICE:
Always do the switching at the battery side.
If the injection volume is not as specified, replace the injector.
(c) Inspect leakage (1) In the condition above, disconnect the test probesof SST (wire) from the battery and check the fuel
leakage from the injector.
Fuel drop:
1ZZ±FE1 drop or less in 12 minutes
3ZZ±FE1 drop or less in 5 minutes
2. INSPECT FUEL PUMP
(a) Insect fuel pump resistance.
(1) Using an ohmmeter, measure the resistance be-tween the terminals.
Resistance: 0.2 to 3.0
at 20 C (68 F)
(b) Inspect fuel pump operation (1) Apply battery voltage to both the terminals. Checkthat the pump operates.
NOTICE:

These tests must be done quickly (within 10 seconds)
to prevent damage to the pump.

Keep fuel pump as far away from the battery as pos-
sible.

Always do the switching at the battery side.
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110UU±01
Fuel Tube Connector
A50710
A60083
Fuel Pipe
Clamp No.1
AA
B12941
±
FUELFUEL SYSTEM(1ZZ±FE/3ZZ±FE)
11±5
AVENSIS REPAIR MANUAL (RM1018E)
ON±VEHICLE INSPECTION
1.CHECK FUEL PRESSURE
(a)Discharge the pressure in the fuel system and take pre-
cautions for possible fuel spillage. (See page 11±1)
(b) Check that the battery voltage is above 12 V.
(c) Disconnect the negative (±) battery cable.
(d) Pull out the connecter from a new fuel tube.
HINT:
Part No. 23901±0D030
(e) Disconnect the fuel tube clamp from the fuel tube connec- tor.
(f) Disconnect the fuel tube connector from the fuel pipe while pinching part A with fingers as shown in the illustra-
tion.
CAUTION:

Do not disconnect the fuel tube connector (quick
type) until after you have discharged the fuel system
pressure and taken appropriate steps to prevent fuel
spillage.

There may be remained pressure in the fuel lines after
discharging the pressure.
Take precautions to prevent fuel from spraying on
you or your clothing or inside the engine compart-
ment.
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No.1 Fuel Pipe
Fuel Tube Connector
SST
(Clip)
SST (T joint)SST
SST
(Hose)
B12975
11±6
±
FUEL FUEL SYSTEM (1ZZ±FE/3ZZ±FE)
AVENSIS REPAIR MANUAL (RM1018E)
(g) Install SST (pressure gauge) and a fuel tube connector using SST as shown in the illustration.
SST 09268±41047(95336±08070),09268±45014 (09268±41250, 09268±41200, 09268±41220)
(h) Wipe up any gasoline.
(i) Reconnect the negative (±) battery cable.
(j) Connect the hand±hand tester to the DLC3.
(k) Measure the fuel pressure. Fuel pressure:
304 to 343 kPa (3.1 to 3.5 kgf/cm
2, 44 to 50 psi)
If pressure is high, replace the fuel pressure regulator.
If pressure is low, check the fuel hoses connections, the fuel
pump, the fuel filter and the fuel pressure regulator.
(l) Disconnect the hand±held tester from the DLC3.
(m) Start the engine.
(n) Measure the fuel pressure at idle. Fuel pressure:
304 to 343 kPa (3.1 to 3.5 kgf/cm
2, 44 to 50 psi)
(o) Stop the engine.
(p) Check that the fuel pressure remains as specified for 5 minutes after the engine has stopped.
Fuel pressure:147 kPa (1.5 kgf/cm
2, 21 psi) or more
If pressure is not as specified, check the fuel pump, the pres-
sure regulator and/or the injectors.
(q) After checking the fuel pressure, disconnect the negative (±) battery cable and carefully remove SST and the fuel
tube connector to prevent gasoline from splashing.
(r) Reconnect the No. 1 fuel pipe (fuel tube connector).
CAUTION:
After taking the precautions, connect the fuel tube con-
necter (quick type).
2. CHECK FUEL PUMP OPERATION AND FUEL LEAK
(a) When using the hand±held tester (1) Connect the hand±held tester to the DLC3.
(2) Turn the ignition switch ON and the hand±held tes-
ter main switch ON.
NOTICE:
Do not start the engine. (3) Select the active test mode on the hand±held tester.
(4) Perform the active test. Check that the fuel pumpoperates and check for fuel leaks.
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