Toyota 3S-GE Repair Manual page 267

ENGINE - EFI SYSTEM EG'253
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14' - 4 &5
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P178413
1. INSPECT THROTTLE BODY
(a) Check that the throttle linkage moves smoothly.
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(b) Check the vacuum at P port.
I Start the engine.
0 Check the vacuum with the vacuum hose pick
your finger.
Port name At idle Other than idle
No vacuum Vacuum
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Ohmmeter \/'—* \
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, - :
VC
VTA
l D L
E2
2. INSPECT THROTTLE POSITION SENSOR
Disconnect the throttle position sensor connector.
Insert a feeler gauge between the throttle stop screw
and stop lever.
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(bl
(c) Using an ohmmeter, measure the resistance between
each terminal.
Clearance between Between
Resistance
terminals
VTA — E2
IDL — E2
IDL — E2
lever and stop screw
0 mm (0 in.)
0.40 mm (0.016 in.)
0.75 mm (0.030 in.)
Throttle valve fully
0.2 —— 5.7 kQ
2.3 kQ or less
Infinity
VTA — E2 2.0 — 10.2 kQ
open
- vc-£2 |
2.5 — 5.9 kQ
(d) Reconnect the throttle position sensor connector.
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