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Home >> Infiniti >> 1990 >> M30 >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - System/Component Tests >> Ignition System >> DISTRIBUTORLESS Ignition System (Q45) >> Crankshaft Angle Sensor
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Crankshaft Angle Sensor

ECU depends upon crankshaft angle sensor for RPM signals. Signals are used by ECU to determine triggering of power transistors and fuel injectors. See CRANKSHAFT ANGLE SENSOR & SUB-CRANK ANGLE SENSOR under ENGINE SENSORS & SWITCHES  .

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