PIN 9S1303 - Caterpillar

Illustration 1 g06017034
(1) Exhaust Temperature Sensor if equipped
(2) Intake Air Pressure and Temperature Sensor
(3) Downstream Low-Pressure Aftercooler T&P Sensor
(4) Coolant Low-Level Switch if equipped
(5) Fuel Filter Clogging Switch
(6) Fuel Temperature Sensor
(7) Service Tool Connector
(8) 70 Pin Customer Connector
(9) IMAT
(10) IMAP
Illustration 2 g06017299
(11) Exhaust temperature sensor if equipped.
(12) Priming pump connector
(13) Crankshaft speed sensor
(14) Water-in-fuel connector
(15) Transmission temperature sensor connector
(16) Transmission pressure sensor connector
Illustration 3 g06017174
(17) Seawater pressure sensor
(18) Low-pressure fuel system pressure sensor
(19) High-pressure fuel pump control valve
(20) Camshaft speed sensor
(21) Fuel temperature sensor
(22) Fuel filter clogging switch
(23) Intake air pressure and temperature sensor
(24) Oil filter clogging switch
(25) IMAP
(26) IMAT
(27) Crankcase pressure sensor
(28) Coolant low-level switch if equipped.
(29) 70-Pin customer connector
(30) Injector harness connector
(31) Service tool connector
Illustration 4 g06017450
(32) Alternator
(33) Clutch connector (1000 hp only)
(34) Supercharger (1000 hp only)
(35) Electronic supercharger clutch (1000 hp only)
Illustration 5 g06017457
(36) Inlet air heater relay
(37) Inlet air heater
(38) IMAT
(39) IMAP
Illustration 6 g06017460
(40) Coolant temperature sensor
(41) Supercharger speed sensor connector (1000 hp only)
(42) Downstream low-pressure aftercooler T&P sensor
Illustration 7 g06017465
(43) Supercharger speed sensor (1,000 hp only)
Illustration 8 g06017467
(44) Oil pressure and temperature
Illustration 9 g06017472
(45) Alternator charging relay
(46) Starter control relay
(47) J2 (2)
(48) ECM
(49) J1 (1)
Illustration 10 g06017476
(50) Injector (11.1 to 11.6)
(51) Fuel rail
(52) Rail pressure sensor
(53) Injector harness connector
Illustration 11 g06017898
(54) ECM J1 connector
(55) ECM J2 connector
Illustration 12 g06017962
Typical example of the Primary fuel filter and water separator and the electric priming pump
(56) Electric priming pump relay - remote mounted
(57) Electric primping pump - remote mounted
Illustration 13 g06018084
(58) Service connector
(59) 70-pin customer connectorThe electronic control system is integrally designed into the engine fuel system and the air inlet and exhaust system to electronically control the fuel delivery and the injection timing. The electronic control system provides increased timing control and fuel air ratio control in comparison to conventional mechanical engines. Injection timing is achieved by precisely controlling the injector firing time. Engine rpm is controlled by adjusting the injection duration. The Electronic Control Module (ECM) energizes the injector solenoids to start the injection of fuel. Also, the ECM de-energizes the injector solenoids to stop the injection of fuel.The personality module is used by the ECM to store all the rated information for a particular application. The personality module cannot be replaced physically. The personality module must be flashed programmed with a PC. Refer to Systems Operation/Testing And Adjusting, "Fuel System" for a complete explanation of the fuel injection process.The engine uses the following three types of electronic components:
Input component
Control component
Output componentAn input component is one that sends an electrical signal to the ECM of the system. The signal that is sent varies in either of the following ways:
Voltage
Frequency
Pulse widthThe variation of the signal is in response to a change in some specific system of the marine engines. Some specific examples of an input component are the engine speed-timing sensors, the coolant temperature sensor, and the engine oil pressure sensor. The ECM interprets the signal from the input component as information about the condition, environment, or operation of the engine.A control component (ECM) receives the input signals from the input components. Electronic circuits inside the control component