Crankshaft Position Sensor (Cps) Removal And Installation; Throttle Position Sensor (Tps) - Mercury 200 OptiMax Jet Drive Service Manual

Ignition

Crankshaft Position Sensor (CPS) Removal and Installation

Performing service or maintenance without first disconnecting the battery can cause product damage, personal injury, or death
due to fire, explosion, electrical shock, or unexpected engine starting. Always disconnect the battery cables from the battery
before maintaining, servicing, installing, or removing engine or drive components.
Removal
1. Disconnect both battery cables from the batteries.
2. Disconnect the engine harness from the CPS.
3. Remove the two screws securing the CPS to the cylinder block.
Installation
1. Install the CPS onto the cylinder block and secure with two M5 x 16 screws. Tighten the screws to the specified torque.
2. Connect the engine harness to the CPS.
a - Screw (M5 x 16) (2)
b - Crankshaft position sensor (CPS)
Description
Screw (M5 x 16)
3. Connect the battery cables to the batteries.

Throttle Position Sensor (TPS)

The throttle position sensor (TPS) transmits throttle angle information to the propulsion control module (PCM). The PCM uses the
throttle angle information, along with other sensors, to regulate fuel injector volume (pulse width) and ignition timing. Should the
sensor fail, a warning horn will sound and engine RPM will be reduced. The TPS is not adjustable. The TPS position can be
monitored with the computer diagnostic system. Voltage change should be smooth from idle to wide‑open throttle. If the voltage
change is erratic, the TPS is defective.
Page 2A-22
a
b
WARNING
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36152
Nm lb‑in.
5.5 49
90-8M0050731 MAY 2011
lb‑ft