This information is relayed to the ECU as a waveform signal (AC). Crankshaft Speed Sensor, Crankshaft Position Sensor, Top Dead Sensor (TDC), RPM Sensor, Engine Speed Sensor. Fuel Parts’s range of Crank Sensors provide high quality Crankshaft monitoring to ensure correct ignition timing, working with the vehicle ECU to calculate that crankshaft position in relation to the pistons.
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