Toyota T100 1996 Service Manual page 345

7 Check EGR vacuum modulator (See page EC−7).
OK
8 Check EGR valve (See page EC−7).
OK
9 Check resistance of EGR gas temp. sensor.
EGR Gas Temp. Sensor
Connector
OK
Check and replace ECM (See page IN−26).
1996 TOYOTA T100 (RM449U)
DIAGNOSTICS − ENGINE (3RZ−FE)
NG Repair or replace.
NG Repair or replace.
PREPARATION:
(a) Disconnect the EGR gas temp. sensor connector.
(b) Start the engine and warm it up.
(c) Disconnect the VSV connector for EGR.
(d) Race the engine at 4,000 rpm or 3 min.
CHECK:
Measure resistance of the EGR gas temp. sensor while racing
the engine at 4,000 rpm.
OK:
P24228
Resistance of EGR gas temp. sensor after 3 min.:
4.3 kΩ or less
HINT:
Resistance: 188.6 − 439.0 kΩ at 20°C (68°F)
NG Replace EGR gas temp. sensor.
DI−81