Sensors and Electrical Connectors
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| Connector | Function | |
| J1/P1 | ECM Connector | |
| J2/P2 | ECM Connector | |
| J100/P100 | Coolant Temperature Sensor | |
| J103/P103 | Air Inlet Temperature Sensor | |
| J200/P200 | Boost Pressure Sensor | |
| J201/P201 | Engine Oil Pressure Sensor | |
| J203/P203 | Atmospheric Pressure Sensor | |
| J204/P204 | Injection Actuation Pressure Sensor | |
| J300/P300 | Valve Cover Connector | |
| J400/P400 | Engine Timing Calibration Probe | |
| J401/P401 | Primary Engine Speed/Timing Sensor | |
| J402/P402 | Secondary Engine Speed/Timing Sensor | |
| J500/P500 | Injection Actuation Pressure Control Valve | |
| J501/P501 | Air Inlet Heater Relay | |
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| Illustration 1 | g01148554 |
Components for the 3126B and 3126E | |
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| Illustration 2 | g01148664 |
Left side engine view (1) Injection actuation pressure control valve (2) Injection actuation pressure sensor (3) Air inlet heater relay (4) Air inlet temperature sensor (5) Atmospheric pressure sensor (6) Boost pressure sensor (7) Valve cover connector (8) Primary engine speed/timing sensor (9) Secondary engine speed/timing sensor (12) ECM (13) J2/P2 ECM connectors (14) J1 ECM connector | |
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