Sensors and Electrical Connectors
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C4.4 and C6.6 Engines for Caterpillar Built Machines
[KENR5389]
C4.4 and C6.6 Engines for Caterpillar Built Machines
Glossary
C4.4 and C6.6 Engines for Caterpillar Built Machines
Engine Wiring Information
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C4.4 and C6.6 Engines for Caterpillar Built Machines
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C4.4 and C6.6 Engines for Caterpillar Built Machines
Sensors and Electrical Connectors
The Electronic Control Module (ECM) and the sensors are located on the left side of the engine. Refer to Figure 1 or 3.
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Illustration 1 | g01248573 |
Sensor locations on the C4.4 engine (1) Fuel Rail Pressure Sensor (2) Intake Manifold Air Temperature Sensor (3) Electronic Control Module (ECM) (4) Primary Speed/Timing Sensor (5) Oil Pressure Sensor (6) Oil Pressure Sensor (alternative location) (7) Secondary Speed/Timing Sensor (8) Solenoid for the Fuel Rail Pump (9) Intake Manifold Pressure Sensor (10) Intake Manifold Pressure Sensor (alternative location) (11) Coolant Temperature Sensor |
Note: The wastegate regulator is installed on the right side of the engine.
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Illustration 2 | g01248579 |
Close up views of sensor locations on the C4.4 engine |
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Illustration 3 | g01178874 |
Sensor locations on the C6.6 engine (1) Coolant Temperature Sensor (2) Intake Manifold Air Temperature Sensor (3) Intake Manifold Pressure Sensor (4) Fuel Rail Pressure Sensor (5) Electronic Control Module (ECM) (6) Oil Pressure Sensor (7) Primary Speed/Timing Sensor (8) Secondary Speed/Timing Sensor (9) Solenoid for the Fuel Rail Pump |
Note: The wastegate regulator is installed on the right side of the engine.
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Illustration 4 | g01178875 |
Close up views of sensor locations on the C6.6 engine |
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Connector | Function |
P1 | Machine Harness to ECM Connector (64 Pin Connector) |
P2 | Engine Harness to ECM Connector (64 Pin Connector) |
P532 | Fuel Rail Pump Solenoid Connector (2 Pin Connector) |
P402 | Secondary Speed/Timing Sensor (2 Pin Connector) |
P401 | Primary Speed/Timing Sensor (2 Pin Connector) |
P201 | Engine Oil Pressure Sensor (3 Pin Connector) |
P228 | Fuel Rail Pressure Sensor (3 Pin Connector) |
P200 | Intake Manifold Pressure Sensor (3 Pin Connector) |
P103 | Intake Manifold Air Temperature Sensor (2 Pin Connector) |
P100 | Coolant Temperature Sensor (2 Pin Connector) |
P691/J691 | Electronic Unit Injectors for No. 1 and No. 2 Cylinders (4 Pin Connector) |
P692/J692 | Electronic Unit Injectors for No. 3 and No. 4 Cylinders (4 Pin Connector) |
P693/J693 (C6.6 only) | Electronic Unit Injectors for No. 5 and No. 6 Cylinders (4 Pin Connector) |
P511 | Wastegate regulator (2 Pin Connector) |
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Illustration 5 | g01389648 |
Schematic diagram for the C4.4 engine (1) Electronic Unit Injector (2) Solenoid for the Fuel Rail Pump (3) Wastegate Regulator (4) Secondary Speed/Timing Sensor (5) Fuel Rail Pump (6) Primary Speed/Timing Sensor (7) Intake Manifold Pressure Sensor (8) Electronic Control Module (ECM) (9) Fuel Rail Pressure Sensor (10) Engine Oil Pressure Sensor (11) Intake Manifold Air Temperature Sensor (12) Coolant Temperature Sensor |
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Illustration 6 | g01389650 |
Schematic diagram for the C6.6 engine (1) Electronic Unit Injector (2) Solenoid for the Fuel Rail Pump (3) Wastegate Regulator (4) Secondary Speed/Timing Sensor (5) Fuel Rail Pump (6) Primary Speed/Timing Sensor (7) Intake Manifold Pressure Sensor (8) Electronic Control Module (ECM) (9) Fuel Rail Pressure Sensor (10) Engine Oil Pressure Sensor (11) Intake Manifold Air Temperature Sensor (12) Coolant Temperature Sensor |
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