Toyota Camry Manual page 2629

Vacuum
Ohmmeter
VTA
E2
VC
Disconnect
SFI (1MZ–FE) – THROTTLE BODY
THROTTLE BODY
ON–VEHICLE INSPECTION
1. INSPECT THROTTLE BODY
Check that the throttle linkage moves smoothly.
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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
condition
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Fully closed
Fully open
–
(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.
Plug
(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
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the correct speed.
Between
terminals
VTA – E2
VTA – E2
VC – E2
Author : Date :
SF–37
SF07T–03
Resistance
0.2 – 6.3 kΩ
2.0 – 10.2 kΩ
2.5 – 5.9 kΩ
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