Flywheel; Crank Position Sensor - Mercury 150 EFI Service Manual

IGNITION

Flywheel

Flywheel has 54 teeth under the flywheel ring gear which the crank position sensor uses
to provide engine rpm and crankshaft position information the ECM.
a -

Crank Position Sensor

Monitors 54 teeth on flywheel thus determining crankshaft position and sends crankshaft
position angle and engine speed signals to ECM. If crank position sensor should fail, en-
gine will stop running.
a -
Between 2 pins of Crank Position Sensor
Connector
Page 2A-16
a
b
Flywheel
a
b
Crank Position Sensor
Crank Position Sensor Resistance Test
b - Crank Position Sensor
b - Crank Position Sensor Connector
300 – 350 ohms
90-883728 JULY 2001
58775
58775