HOSE 8V1309 - Caterpillar

Certain parameters that affect the engine operation may be changed through Electronic Service Tools. The parameters are stored in the ECM, NOT the Personality Module. Any parameter can be read, but passwords protect parameters from unauthorized changes.The parameters fall into two categories: System Configuration Parameters, and Customer Specified Parameters. System Configuration Parameters can be changed only with the proper factory passwords, and Customer Specified Parameters can be changed only with the proper customer passwords. Refer to the topic on passwords for more details on how to obtain and use passwords.For details on how to read and change parameters using an ECAP, refer to Special Instruction SEHS9199, Using the NEXG4516 Marine/Industrial Engine Functions Service Program Module.Programmable Parameters
Certain parameters that affect the engine operation may be changed with an Electronic Service Tool (ECAP). These parameters are stored in the ECM.These parameters are either System Configuration Parameters or Customer Parameters. System Configuration Parameters are those that affect power ratings or emissions. Customer Parameters are those that affect Low Idle and High Idle Engine rpm Setting.Self-Diagnostics
The ECM has a limited ability to diagnose itself. When a problem is detected, a diagnostic code is generated and the diagnostic lamp flashes the Active diagnostic code. In most cases, the diagnostic code is also stored (Logged) in permanent memory in the ECM.Diagnostic codes that represent current diagnostic codes are called ACTIVE. They indicate that a problem of some kind currently exists. They should always be serviced first. Refer Troubleshooting Diagnostic Diagnostic codes in this manual for more details.Diagnostic codes stored in memory are called LOGGED. Since the problem may have been temporary, or may have been repaired since the time it was logged, logged diagnostic codes do not necessarily mean something needs to be repaired. Instead they are meant to be an indicator of probable causes for intermittent problems. In addition, some logged diagnostic codes record EVENTS, rather than failures.Diagnostic codes not requiring passwords to clear are automatically deleted after 100 ECM operating hours. Refer to Troubleshooting Diagnostic Codes in this manual for more details.System Configuration Parameters
System Configuration Parameters are those that affect emissions or power of the engine. They are programmed at the factory and would normally never need to be changed through the life of the engine. Proper values for these parameters are stamped on the engine information ratings plate located on the valve cover or intake manifold. Factory Passwords are required to change these parameters. An example of the ECAP screen displaying System Configuration Parameters can be found at the end of this section. The following is a brief description of the System Configuration Parameters.Full Load Setting
A number representing fuel system adjustment made at the factory to "fine tune" the fuel system. Correct value for this parameter is stamped on the engine information ratings plate.Full Torque Setting
Similar to Full Load Setting. A number representing an adjustment made at the factory to "fine tune" the engine. Correct value for this parameter is stamped on the engine information ratings plate.Personality Module Code
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