C9 Marine Engines Caterpillar

Sensors and Electrical Connectors

Usage:

C9 C9B

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Illustration 1	g01188286
Block diagram

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Illustration 2	g01188293
Component locations (left side view) (1) Injection actuation pressure connector (2) Unit injector hydraulic pump (3) Injection actuation pressure sensor (4) Boost pressure sensor (5) Inlet manifold temperature sensor (6) Engine oil temperature sensor (middle) (7) Timing calibration probe connector (8) Oil grade plug (9) Engine oil temperature sensor (end) (10) Connector for the transmission oil pressure sensor (11) Connector for the transmission oil temperature sensor (12) Primary engine speed/timing sensor (13) Customer connector (14) Secondary engine speed/timing sensor (15) Service tool connector (16) Engine oil pressure sensor (17) J2/P2 connectors (18) ECM (19) J1/P1 connectors (20) Connector for the fuel level sensor

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Illustration 3	g01188296
Component locations (top view) (21) Coolant temperature sensor (22) Coolant level sensor (23) Fuel temperature sensor (24) Fuel pressure sensor

Caterpillar Information System:

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