5000CD Turbo (Canada) L5-2144cc 2.14L SOHC Turbo (KH) (1984)
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Engine Speed Sensor: Description and Operation
Speed Sensor/Reference Sensor
The speed sensor is a magnetic pick-up which produces 135 impulses per engine revolution, (i.e.: one impulse per flywheel tooth). These impulses are
used by the control unit to determine engine speed and the ignition timing point. The sensor is located on the upper left side of the transmission bell
housing.
By means of a pin inserted in the flywheel the reference sensor sends one impulse per crankshaft revolution at 60° BTDC. This signal is used by the
control unit along with the Hall sensor in the distributor to identify TDC for #1 cylinder. The sensor is also located next to the speed sensor.
