2000 TOYOTA CAMRY O2 sensor

5. REMOVE AIR CLEANER CAP, RESONATOR AND
AIR CLEANER HOSE
(a) Disconnect the intake air temperature sensor connec±
tor.
(b) California only:
Disconnect the air hose from the air cleaner hose.
(c) Loosen the air cleaner hose clamp bolt.
(d) Disconnect the 4 air cleaner cap clips.
(e) Disconnect the air cleaner hose from the throttle
body, and remove the air cleaner cap together with
the resonator and air cleaner hose. 1. DISCONNECT NEGATIVE (±) TERMINAL CABLE
FROM BATTERY
CAUTION: Work must be started after 90 seconds from
the time the ignition switch is turned to the ªLOCKº
position and the negative (±) terminal cable is discon±
nected from the battery.
2. DRAIN ENGINE COOLANT
3. DISCONNECT ACCELERATOR CABLE FROM
THROTTLE LINKAGE
4. A/T:
DISCONNECT THROTTLE CABLE FROM
THROTTLE LINKAGE
6. REMOVE THROTTLE BODY
(a) Disconnect the throttle position sensor connector.
(b) Disconnect the IAC valve connector.
THROTTLE BODY REMOVAL
± 5S±FE ENGINEMFI/SFI SYSTEMEG1±207

THROTTLE BODY INSPECTION
1. CLEAN THROTTLE BODY
(a) Using a soft brush and carburetor cleaner, clean the
cast parts.
(b) Using compressed air, clean all the passengers and
apertures.
NOTICE: To prevent deterioration, do not clean the
throttle position sensor.
(f) Disconnect the following hoses from the throttle
body, and remove the throttle body.
(1) Water bypass hose from water outlet
(2) Water bypass hose from water bypass pipe
(3) California:
Air hose from cylinder head
Except California:
Air hose from air tube (c) Disconnect the following hoses from the throttle
body.
(1) PCV hose
(2) 2 vacuum hoses from EGR vacuum modulator
(3) Vacuum hose from TVV (for EVAP)
7. IF NECESSARY, REMOVE IAC VALVE FROM
THROTTLE BODY
Remove the 4 screws, IAC valve and gasket.(d) Type A:
Remove the 4 bolts.
(e) Type B:
Remove the 2 bolts and 2 nuts.
± 5S±FE ENGINEMFI/SFI SYSTEMEG1±208

(b) Apply vacuum to the throttle opener.
(c) Insert a 0.60 mm (0.024 in.) thickness gauge between
the throttle stop screw and stop lever.
(d) Connect the test probe of an ohmmeter to the termi±
nals IDL and E2 of the sensor.
(e) Gradually turn the sensor clockwise until the ohmmeter
deflects, and secure it with the 2 set screws. 3. INSPECT THROTTLE POSITION SENSOR
(a) Apply vacuum to the throttle opener.
(b) Insert a thickness gauge between the throttle stop
screw and stop lever.
(c) Using an ohmmeter, measure the resistance between
each terminal. 2. INSPECT THROTTLE VALVE
(a) Apply vacuum to the throttle opener.
(b) Check that there is no clearance between the throttle
stop screw and throttle lever when the throttle valve
is fully closed.
4. IF NECESSARY, ADJUST THROTTLE POSITION
SENSOR
(a) Loosen the 2 set screws of the sensor.
Clearance between
lever and stop screw
Throttle valve fully
open 0.50 mm (0.020 in.)
0.70 mm (0.028 in.)Between terminals
2.0 ± 10.2 k
2.3 k
or less 0.2 ± 5.7 k

0 mm (0 in.)
2.5 ± 5.9 k
Resistance
VTA ± E2
VTA ± E2IDL±E2IDL±E2
Infinity
VC ± E2
± 5S±FE ENGINEMFI/SFI SYSTEMEG1±209

(c) Type A:
Install the throttle body with the 4 bolts.
Torque: 19 N±m (195 kgf±cm, 14 ft±lbf)
Bolt length:
A 45 mm (1.77 in.)
B 55 mm (2.17 in.)
(d) Type B:
Install the throttle body with the 2 bolts and 2 nuts.
Torque: 19 N±m (195 kgf±cm, 14 ft±lbf)
3. INSTALL AIR CLEANER CAP, RESONATOR AND
AIR CLEANER HOSE
(a) Connect the air cleaner hose to the throttle body.
(b) Install the air cleaner cap together with the resonator
and air cleaner hose.
(c) California only:
Connect the air hose to the air cleaner hose.
(d) Connect the intake air temperature sensor connector.
4. A/T:
CONNECT AND ADJUST THROTTLE CABLE
5. CONNECT AND ADJUST ACCELERATOR CABLE
6. FILL WITH ENGINE COOLANT
7. CONNECT NEGATIVE (±) TERMINAL CABLE TO
BATTERY (e) Connect the following hoses to the throttle body:
(1) PCV hose
(2) 2 vacuum hoses from EGR vacuum modulator
(3) Vacuum hose from TVV (for EVAP)
(f) Connect the IAC valve connector.
(g) Connect the throttle position sensor connector.
± 5S±FE ENGINEMFI/SFI SYSTEMEG1±211

3. INSPECT ECT SENSOR RESISTANCE
Using an ohmmeter, measure the resistance between
the terminals.
Resistance:
Refer to the graph above
If the resistance is not as specified, replace the
sensor.
4. REINSTALL ECT SENSOR
5. FILL WITH ENGINE COOLANT
ENGINE COOLANT TEMPERATURE
(ECT) SENSOR
ECT SENSOR INSPECTION
1. DRAIN ENGINE COOLANT
2. REMOVE ECT SENSOR
± 5S±FE ENGINEMFI/SFI SYSTEMEG1±219

2. INSPECT IAT SENSOR RESISTANCE
Using an ohmmeter, measure the resistance between
the terminals.
Resistance:
Refer to the graph above
If the resistance is not as specified, replace the
sensor.
3. REINSTALL IAT SENSOR
INTAKE AIR TEMPERATURE (IAT)
SENSOR
IAT SENSOR INSPECTION
1. REMOVE IAT SENSOR
± 5S±FE ENGINEMFI/SFI SYSTEMEG1±220

MAP SENSOR INSPECTION
1. INSPECT POWER SOURCE VOLTAGE OF MAP
SENSOR
(a) Disconnect the MAP sensor connector.
(b) Turn the ignition switch ON.
(c) Using a voltmeter measure the voltage between con±
nector terminals VC and E2 of the wiring harness side.
Voltage:
4.75 ± 5.25 V
(d) Reconnect the MAP sensor connector.
MANIFOLD ABSOLUTE PRESSURE
(MAP) SENSOR
± 5S±FE ENGINEMFI/SFI SYSTEMEG1±221

2. INSPECT POWER OUTPUT OF MAP SENSOR
(a) Turn the ignition switch ON.
(b) Disconnect the vacuum hose on the air intake cham±
ber side.
(c) Connect a voltmeter to terminals PIM and E2 of the
ECM, and measure the output voltage under ambient
atmospheric pressure.
(d) Apply vacuum to the MAP sensor in 13.3 kPa (100
mmHg, 3.94 in.Hg) segments to 66.7 kPa (500 mmHg,
19.69 in.Hg).
(e) Measure the voltage drop from step
(c) above for each
segment.
Voltage drop:
Applied
Vacuum
kPa
(mmHg
in.Hg)66.7
( 500
19.69) 53.5
( 400
15.75) 40.0
( 300
111.8) 13.3
(100
3.94 )26.7
(200
7.87)
Voltage
drop V0.7±0.9
0.3±0.5
1.1 ±1.3 1.5 ± 1.71.9 ± 2.1
± 5S±FE ENGINEMFI/SFI SYSTEMEG1±222