Toyota 1KZ-TE Repair Manual page 258

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FU- -2
Ohmmeter
Ohmmeter
No Continuity
Ohmmeter
1KZ- -TE ENGINE SUP (RM790E)
ENGINE FUEL
B13126
1
0.5 -- 2.0 Ω
Vacuum
B08181
1
B08182
1
Continuity
Vacuum
B08183
- - FUEL HEATER
INSPECTION
1. REMOVE FUEL HEATER
(a) Disconnect the fuel heater connector.
(b) Remove the 2 screws and fuel heater.
2. INSPECT FUEL HEATER
(a) Inspect the fuel heater resistance.
Apply a vacuum of 34.7 ± 5.3 kPa (260 ± 40
(1)
mmHg, 10.24 ± 1.57 in.Hg) or more to the vacuum
switch port.
(2) Using an ohmmeter, measure the resistance be-
tween terminal 1 and the switch body.
Resistance: 0.5 - - 2.0 Ω at 20˚C (68˚F)
If the resistance is not as specified, replace the fuel heater.
(b) Inspect the vacuum switch continuity.
Using an ohmmeter, check that there is no continuity be-
tween terminal 1 and the switch body.
If continuity is not as specified, replace the fuel heater.
(c) Inspect the vacuum switch operation.
(1) Apply a vacuum of 34.7 ± 5.3 kPa (260 ± 40
mmHg, 10.24 ± 1.57 in.Hg) or more to the vacuum
switch port.
(2) Using an ohmmeter, check that there is continuity
between terminal 1 and the switch body.
If operation is not as specified, replace the fuel heater.
3 . RE I NS TALL F UE L HE ATE R
(a) Install the fuel heater with the 2 screws.
Torque: 1.96 N∙m (20 kgf∙cm, 17 in.∙lbf)
(b) Connect the fuel heater connector.
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