Disconnect the throttle sensor setting adapter [A] from the connector of the main harness side.
Special Tool - Throttle Sensor Setting Adapter: 57001 -1538
Connect the setting adapter [B] to the sensor connector only.
Connect a digital meter [A] to the setting adapter [B].
Main Throttle Sensor [C]
Main Throttle Sensor Resistance
Connections to Adapter:
W (sensor BL) lead ← → BK (sensor BR/BK) lead
Standard: 4
6 kΩ
If the reading is out of the standard, replace the throttle body assy.
If the reading is within the standard, check the output voltage (see Main Throttle Sensor Output Voltage Inspection).
Main Throttle Sensor Input Voltage Inspection
Main Throttle Sensor Output Voltage InspectionInner Tube Inspection
Visually inspect the inner tube [A].
If there is any damage, replace the inner tube. Since
damage to the inner tube damages the oil seal, replace
the oil seal whenever the inner tube is replaced.
NOTICE
If the inner tube is badly bent or creased, replace
it. Excessive bending, followed by ...
Connecting Rod Twist Inspection
With the big-end arbor [A] still on V block [C], hold the
connecting rod horizontally and measure the amount that
the arbor [B] varies from being paralleled with the surface
plate over a 100 mm (3.94 in.) length of the arbor to determine
the amount of connecting rod twist.
If the conne ...
Thermostat Inspection
Remove the thermostat (see Thermostat Removal).
Inspect the thermostat valve [A] at room temperature.
If the valve is open, replace the thermostat with a new
one.
To check valve opening temperature, suspend the thermostat
[A] in a container of water and raise the temperature
of ...