check engine TOYOTA CAMRY 2000 Service Repair Manual

S05358
TOYOTA
Hand Held TesterSF079±04
S05353
S05359
Fuel Tube Connector
SF±6
± SFI (1MZ±FE)FUEL PUMP
1505 Author: Date:
FUEL PUMP
ON±VEHICLE INSPECTION
1. CHECK FUEL PUMP OPERATION
(a) Connect a TOYOTA hand±held tester to the DLC3.
(b) Turn the ignition switch ON and push the TOYOTA hand±
held tester main switch ON.
NOTICE:
Do not start the engine.
(c) Select the ACTIVE TEST mode on the TOYOTA hand±
held tester.
(d) Please refer to the TOYOTA hand±held tester operator's
manual for further details.
(e) If you have no TOYOTA hand±held tester, connect the
positive (+) and negative (±) leads from the battery to the
fuel pump connector. (See step 7)
(f) Check that there is pressure in the fuel inlet hose from the
fuel filter.
HINT:
If there is fuel pressure, you will hear the sound of fuel flowing.
If there is no pressure, check these parts:
Fusible link
Fuses
EFI main relay
Fuel pump
ECM
Wiring connections
(g) Turn the ignition switch OFF.
(h) Disconnect the TOYOTA hand±held tester from the
DLC3.
2. CHECK FUEL PRESSURE
(a) Check the battery positive voltage is above 12 V.
(b) Disconnect the negative (±) terminal cable from the bat-
tery.
(c) Purchase the new No.1 fuel pipe and take out the fuel
tube connector from its pipe.
Part No. 23801±20041

S06086
Fuel Hose
Clamp
S05352
S05364
SST
SST
Retainer
No.1 Fuel
Fuel Tube
Connector (Hose)
Pipe
SST
(Hose)SST
± SFI (1MZ±FE)FUEL PUMP
SF±7
1506 Author: Date:
(d) Remove the fuel hose clamp.
(e) Disconnect the No.1 fuel pipe (fuel tube connector) from
the fuel filter outlet.
CAUTION:

Perform disconnecting operations of the fuel tube
connector (quick type) after observing the precau-
tions. (See page SF±1)

As there is retained pressure in the fuel pipe line, pre-
vent it from splashing inside the engine compart-
ment.
(f) Install SST (pressure gauge) as shown in the illustration
by using SST and fuel tube connector.
SST 09268±41047, 09268±41250, 09268±45012
(g) Wipe off any splattered gasoline.
(h) Reconnect the negative (±) terminal cable to the battery.
(i) Connect the TOYOTA hand held tester to the DLC3.
(See step 1. check fuel pump operation (a) to (e))
(j) Measure the fuel pressure.
Fuel pressure:
301 ± 347 kPa (3.1 ± 3.5 kgf/cm
2, 44 ± 50 psi)
If pressure is high, replace the fuel pressure regulator.
If pressure is low, check these parts:
Fuel hoses and connections
Fuel pump
Fuel filter
Fuel pressure regulator
(k) Disconnect the TOYOTA hand±held tester from the
DLC3.
(l) Start the engine.
(m) Measure the fuel pressure at idle.
Fuel pressure:
301 ± 347 kPa (3.1 ± 3.5 kgf/cm
2, 44 ± 50 psi)
(n) Stop the engine.
(o) 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, pressure
regulator and/or injectors.

S04528
Clip 5 mm
Hexagon
Wrench
SF07I±03
B00623
Sound Scope
Sound Scope California A/T
Except California A/T
B00624
Ohmmeter
Ohmmeter California A/T
Except California A/T
± SFI (1MZ±FE)INJECTOR
SF±21
1520 Author: Date:
INJECTOR
ON±VEHICLE INSPECTION
1. REMOVE V±BANK COVER
(a) Using a 5 mm hexagon wrench, remove the 2 cap nuts.
(b) Disconnect the 2 clips, and remove the V±bank cover.
2. INSPECT INJECTOR OPERATION
Check operation sound from each injector.
(1) With the engine running or cranking, use a sound
scope to check that there is normal operating noise
in proportion to engine speed.
(2) If you have no sound scope, you can check the in-
jector operating vibration with your finger.
If no sound or unusual sound is heard, check the wiring connec-
tor, injector or injection signal from the ECM.
3. INSPECT INJECTOR RESISTANCE
(a) Disconnect the injector connector.
(b) Using an ohmmeter, measure the resistance between the
terminals.
Resistance: 13.4 ± 14.2 W at 20°C (68°F)
If the resistance is not as specified, replace the injector.
(c) Reconnect the injector connector.
4. REINSTALL V±BANK COVER
HINT:
For fixing the V±bank cover, push on the cover until a ºclickº is
felt.

B01913
California A/T
Except California A/TBatterySST
(Wire)
BatterySST
(Wire)
B00628
California A/TExcept
California A/T
± SFI (1MZ±FE)INJECTOR
SF±27
1526 Author: Date:
(k) Connect SST (wire) to the injector and battery for 15 se-
conds, and measure the injection volume with a gra-
duated cylinder. Test each injector 2 or 3 times.
SST 09842±30070
Volume:
60 ± 73 cm
3 (3.4 ± 4.5 cu in.) per 15 sec.
Difference between each injector:
13 cm
3 (0.8 cu in.) or less
If the injection volume is not as specified, replace the injector.
2. INSPECT LEAKAGE
(a) In the condition above, disconnect the test probes of SST
(wire) from the battery and check the fuel leakage from
the injector.
SST 09842±30070
Fuel drop: 1 drop or less per 12 minutes
(b) Turn the ignition switch OFF.
(c) Disconnect the negative (±) terminal cable from the bat-
tery.
(d) Remove the SST and fuel tube connector.
SST 09268±41047, 09842±30070
CAUTION:

Perform disconnecting operations of the fuel tube
connector (quick type) after observing the precau-
tions. (See page SF±1)

As there is retained pressure in the fuel pipe line, pre-
vent it from splashing inside the engine compart-
ment.
(e) Disconnect the TOYOTA hand±held tester from the
DLC3.

S04593
SF07T±03
S04536
Vacuum
VTAOhmmeter
E2
VC
S04604
Plug
Disconnect
± SFI (1MZ±FE)THROTTLE BODY
SF±37
1536 Author: Date:
THROTTLE BODY
ON±VEHICLE INSPECTION
1. INSPECT THROTTLE BODY
Check that the throttle linkage moves smoothly.
2. INSPECT THROTTLE POSITION SENSOR
(a) Disconnect the sensor connector.
(b) Disconnect the vacuum hose from the throttle body.
(c) Apply vacuum to the throttle opener.
(d) Using an ohmmeter, measure the resistance between
each terminal.
Resistance:
Throttle valve
conditionBetween
terminalsResistance
Fully closedVTA ± E20.2 ± 6.3 kW
Fully openVTA ± E22.0 ± 10.2 kW
±VC ± E22.5 ± 5.9 kW
(e) Reconnect the vacuum hose to the throttle body.
(f) Reconnect the sensor connector.
3. INSPECT THROTTLE OPENER
(a) Allow the engine to warm up to normal operating tempera-
ture.
(b) Check idle speed.
Idle speed: 700 ± 50 rpm
(c) Disconnect the vacuum hose from the throttle opener,
and plug the hose end.
(d) Check the throttle opener setting speed.
Throttle opener setting speed: 900 ± 1,950 rpm
If the throttle opener setting is not as specified, replace the
throttle body.
(e) Stop the engine.
(f) Reconnect the vacuum hose to the throttle opener.
(g) Start the engine and check that the idle speed returns to
the correct speed.

SF07Y±03
S04529
E1DLC1
SST
TE1
DLC1
S04533
RSC
+B
RSO
Ohmmeter SF±42
± SFI (1MZ±FE)IDLE AIR CONTROL (IAC) VALVE
1541 Author: Date:
IDLE AIR CONTROL (IAC) VALVE
ON±VEHICLE INSPECTION
1. INSPECT IAC VALVE OPERATION
(a) Initial conditions:

Engine at normal operating temperature

Idle speed checked correctly

Transmission in neutral position

A/C switch OFF
(b) Using SST, connect terminals TE1 and E1 of the
DLC1.
SST 09843±18020
(c) After engine speed is kept at approx. 1,000 rpm for 5 se-
conds, check that it returns to idle speed.
If the engine speed operation is not as specified, check the IAC
valve, wiring and ECM.
(d) Remove the SST from the DLC1.
SST 09843±18020
2. INSPECT IAC VALVE RESISTANCE
NOTICE:
ºColdº and ºHotº in the following sentences express the
temperature of the coils themselves. ºColdº is from ±10°C
(14°F) to 50°C (122°F) and ºHotº is from 50°C (122°F) to
100°C (212°F).
(a) Disconnect the IAC valve connector.
(b) Using an ohmmeter, measure the resistance between ter-
minal +B and other terminals (RSC, RSO).
Resistance:
Cold17.0 ± 25.0 W
Hot21.5 ± 29.5 W
If resistance is not as specified, replace the IAC valve.
(c) Reconnect the IAC valve connector.
3. INSPECT AIR ASSIST SYSTEM
(a) Initial conditions:

Engine at normal operating temperature

Idle speed checked correctly

Transmission in neutral position

A/C switch OFF

S04529
E1DLC1
SST
TE1
DLC1
S04531
DisconnectPlug
Plug
± SFI (1MZ±FE)IDLE AIR CONTROL (IAC) VALVE
SF±43
1542 Author: Date:
(b) Using SST, connect terminals TE1 and E1 of the DLC1.
SST 09843±18020
(c) After engine speed is kept at 900 ± 1,300 rpm for 10 se-
conds, check that it returns to idle speed.
(d) Stop the engine.
(e) Disconnect the air assist hose from the air pipe, and block
off the IAC valve exit and the entry to the pipe.
(f) Start the engine and check that the idle speed reaches
500 rpm or below (the engine may stall).
If the idle does not reach 500 rpm or below, check for a leak be-
tween the air assist hoses, pipe and injectors.
(g) Remove the SST from the DLC1.
SST 09843±18020
(h) Reconnect the air assist hose to the air pipe.

S05036
Vacuum Gage
SF083±03
S05037
Approx.
27.6 kPa SF±48
± SFI (1MZ±FE)ACOUSTIC CONTROL INDUCTION SYSTEM (ACIS)
1547 Author: Date:
ACOUSTIC CONTROL INDUCTION
SYSTEM (ACIS)
ON±VEHICLE INSPECTION
INSPECT INTAKE AIR CONTROL VALVE
(a) Using a 3±way connector, connect vacuum gauge to the
actuator hose.
(b) Start the engine.
(c) While the engine is idling, check that the vacuum gauge
needle does not move.
(d) Rapidly depress the accelerator pedal to fully open posi-
tion and check that the vacuum gauge needle momentari-
ly fluctuates up to approx. 26.7 kPa (200 mmHg, 7.9
in.Hg). (The actuator rod is pulled out.)

SF08L±03
P20115
SSTKnock Sensor 1
Knock Sensor 2
P01630
Ohmmeter
No Continuity
± SFI (1MZ±FE)KNOCK SENSOR
SF±67
1566 Author: Date:
INSPECTION
1. REMOVE AIR CLEANER HOSE
2. REMOVE RH ENGINE MOUNTING STAY
3. REMOVE INTAKE MANIFOLD ASSEMBLY AND
WATER OUTLET (Seepage EM±32)
4. REMOVE KNOCK SENSORS
(a) Disconnect the knock sensor connector.
(b) Using SST, remove the knock sensor.
SST 09817±16011
5. INSPECT KNOCK SENSORS
Using an ohmmeter, check that there is no continuity between
the terminal and body.
If there is continuity, replace the sensor.
6. REINSTALL KNOCK SENSORS
(a) Using SST, install the knock sensor.
SST 09817±16011
Torque: 39 N´m (400 kgf´cm, 29 ft´lbf)
(b) Connect the knock sensor connector.
7. REINSTALL WATER OUTLET AND INTAKE
MANIFOLD ASSEMBLY (See page EM±57)
8. REINSTALL RH ENGINE MOUNTING STAY
9. REINSTALL AIR CLEANER HOSE

S04528
5 mm
Hexagon
Wrench
Clip
SF08T±03
S05358
TOYOTA
Hand±Held Tester
B00623
Sound Scope
Sound Scope California A/T
Except California A/T
± SFI (1MZ±FE)FUEL CUT RPM
SF±75
1574 Author: Date:
FUEL CUT RPM
INSPECTION
1. REMOVE V±BANK COVER
(a) Using a 5 mm hexagon wrench, remove the 2 cap nuts.
(b) Disconnect the 2 clips, and remove the V±bank cover.
2. WARM UP ENGINE
Allow the engine to warm up to normal operating temperature.
3. CONNECT TOYOTA HAND±HELD TESTER OR OBDII
SCAN TOOL
(a) Connect the TOYOTA hand±held tester or OBDII scan
tool to the DLC3.
(b) Please refer to the TOYOTA hand±held tester or OBDII
scan tool operator's manual for further details.
4. INSPECT FUEL CUT OFF PRM
(a) Increase the engine speed to at least 3,500 rpm.
(b) Use a sound scope to check for injector operating noise.
(c) Check that when the throttle lever is released, injector op-
eration noise stops momentarily and then resumes.
HINT:
Measure with the A/C OFF.
Fuel return rpm: 1,200 rpm
5. DISCONNECT TOYOTA HAND±HELD TESTER OR
OBDII SCAN TOOL
6. REINSTALL V±BANK COVER
HINT:
For fixing the V±bank cover, push on the cover until a ºclickº is
felt.