TOYOTA CAMRY 2000 Service Repair Manual

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

VSV INSPECTION (California)
1. REMOVE VSV
(a) Disconnect the following connectors and hoses:
(1) VSV for EGR (A) connector
(2) VSV for fuel pressure control (B) connector
(3) Vacuum hose (from EGR valve) from port E of
VSV (A)
(4) Vacuum hose (from port ªQº of EGR vacuum
modulator) from port G of VSV (A)
(5) Vacuum hose (from fuel pressure regulator) from
port E of VSV (B)
(6) Vacuum hose (from air intake chamber) from port
G of VSV (B)
(b) Remove the bolt and VSV assembly.
2. INSPECT VSV
A. Inspect VSV for open circuit
Using an ohmmeter, check that there is continuity
between the terminals.
Resistance (Cold):
33±39

If there is no continuity, replace the VSV.
VSV FOR EGR
± 5S±FE ENGINEMFI/SFI SYSTEMEG1±223

VSV INSPECTION (Except California)
1. REMOVE VSV
(a) Disconnect the following connector and hoses:
(1) VSV connector
(2) Vacuum hose (from EGR valve) from port E of
VSV
(3) Vacuum hose (from port ªaº of EGR vacuum
modulator) from port G of VSV
(b) Remove the bolt and VSV.
2. INSPECT VSV
A. Inspect VSV for open circuit
Using an ohmmeter, check that there is continuity
between the terminals.
Resistance (Cold):
33±39

If there is no continuity, replace the VSV. B. Inspect VSV for ground
Using an ohmmeter, check that there is no continuity
between each terminal and the body.
If there is continuity, replace the VSV.
(b) Apply battery voltage across the terminals.
(c) Check that air flows from port E to the filter.
If operation is not as specified, replace the VSV.
3. REINSTALL VSV C. Inspect VSV operation
(a) Check that air flows from port E to port G.
± 5S±FE ENGINEMFI/SFI SYSTEMEG1±224

B. Inspect VSV for ground
Using an ohmmeter, check that there is no continuity
between each terminal and the body.
If there is continuity,. replace the VSV.
(b) Apply battery voltage across the terminals.
(c) Check that air flows from port E to the filter.
If operation is not as specified, replace the VSV.
3. REINSTALL VSVC. Inspect VSV operation
(a) Check that air flows from port E to port G.
± 5S±FE ENGINEMFI/SFI SYSTEMEG1±225

VSV INSPECTION
1. REMOVE VSV
(a) Disconnect the following connectors and hoses:
(1) VSV for EGR (A) connector
(2) VSV for fuel pressure control (B) connector
(3) Vacuum hose (from EGR valve) from port E of VSV (A)
(4) Vacuum hose (from port ªaº of EGR vacuum
modulator) from port G of VSV (A)
(5) Vacuum hose (from fuel pressure regulator) from
port E of VSV (B)
(6) Vacuum hose (from air intake chamber) from port
G of VSV (B)
(b) Remove the bolt and VSV assembly.
2. INSPECT VSV
A. Inspect VSV for open circuit
Using an ohmmeter, check that there is continuity
between the terminals.
Resistance (Cold):
33±39

If there is no continuity, replace the VSV.
VSV FOR FUEL PRESSURE CONTROL
(California only)
± 5S±FE ENGINEMFI/SFI SYSTEMEG1±226

B. Inspect VSV for ground
Using an ohmmeter, check that there is no continuity
between each terminal and the body.
If there is continuity, replace the VSV.
(b) Apply battery voltage across the terminals.
(c) Check that air flows from pipe E to the filter.
If operation is not as specified, replace the VSV. C. Inspect VSV operation
(a) Check that air flows from pipe E to pipe G.
3. REINSTALL VSV
± 5S±FE ENGINEMFI/SFI SYSTEMEG1±227

A/C IDLE± UP VALVE INSPECTION
1. REMOVE IDLE±UP VALVE
(a) Disconnect the following connector and hoses:
(1) Idle±up valve connector
(2) Air hose from air intake chamber
(3) Air hose from air tube
(b) Remove the 2 bolts and idle±up valve together with
the 2 air hoses.
(c) Disconnect the 2 air hoses from the idle±up valve.
2. INSPECT IDLE±UP VALVE
A. Inspect idle±up valve for open circuit
Using an ohmmeter, check that there is continuity
between the terminals.
Resistance (Cold):
30±34

If there is no continuity, replace the idle±up valve.
B. Inspect idle±up valve for ground
Using an ohmmeter, check that there is no continuity
between each terminal and the body.
If there is continuity, replace the idle±up valve.
A±C IDLE±UP VALVE
± 5S±FE ENGINEMFI/SFI SYSTEMEG1±228

(b) Apply battery voltage across the terminals.
(c) Check that air flows from port E to port F.
If operation is not as specified, replace the idle±up
valve. C. Inspect idle±up valve operation
(a) Check that air does not flow from port E to port F.
3. REINSTALL IDLE± UP VALVE
± 5S±FE ENGINEMFI/SFI SYSTEMEG1±229

2. INSPECT EGR GAS TEMPERATURE SENSOR
Using an ohmmeter, measure the resistance between
the terminals.
Resistance:
64±97 k
at 50
C (122
F)
11±16 k
at 100
C (212
F)
2±4 k
at 150
C (302
F)
If the resistance is not as specified, replace the
sensor.
EGR GAS TEMPERATURE SENSOR
INSPECTION
1. REMOVE EGR GAS TEMPERATURE SENSOR
EGR GAS TEMPERATURE SENSOR
3. REINSTALL EGR GAS TEMPERATURE SENSOR
± 5S±FE ENGINEMFI/SFI SYSTEMEG1±230