4. ELECTRONICALLY CONTROLLED CARBURETOR SYSTEM
SYM
4-6
Crankshaft position/ rotate speed sensor illustration
Crankshaft position/ cycles per second signal function illustration
Without external power supply，a total of two signal pin plug
Its main composition is a variable magnetic resistance induction coil
The distance between the Sensor and flywheel shall be 0.7 ~ 1.1 mmWithout external power supply，a
total of two signal pin plug.
Its main composition is a variable magnetic resistance induction coil
The distance between the Sensor and flywheel shall be 0.7 ~ 1.1 mm
Testing Procedures
Resistance measurement
Remove the connector of crankshaft rotate speed (blue/yellow ＆ green/white)
Use the AVOmeter and tune to ohm range, inspect the resistance value of crankshaft position/rotate
speed sensor.
Standard resistance value： 80~160Ω(20ºC)
Abnormal Situations and solution:
The inside coil of sensor is broken line, or Adapter connector poor contact.
Check whether there is any abnormal on main distribution line.
When the coil of sensor is abnormal, suggest to replace new coil assembly
ET SENSOR
TPS
O
2
SENSOR
Ignition coil
ACG/FLY
WHEEL
Spark
plug
CPS
CPSCPS
CPS
ECU
BATTERY
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