SPRING 1620175 - Caterpillar

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
This code prevents use of incorrect Personality Module for this engine. Each power rating family and emission certification has a different code associated with it. The code (stored in ECM) MUST match that in the Personality Module or a 253-02 Diagnostic Code (56) will be generated. When rerating or installing a new ECM, programming this code to 0 (zero) will prompt the ECM to read and match its stored code to the Personality Module. This diagnostic code DOES NOT need to be programmed when a Personality Module is replaced if the new module is for the same rating. If the Personality Module is for a different rating, then pistons, nozzles, etc may need to be changed and the engine information plate should also be updated to reflect the rerate.Engine Serial Number:
Should be programmed to match the engine serial number stamped on the ratings plate. A new ECM is delivered with the engine serial number programmed to 0XX00000.Customer Specified Parameters
Customer Specified Parameters allow a customer to program some engine/system related parameters.Customer parameters may be changed repeatedly. Customer Passwords are required to change these parameters. The following is a brief description of the Customer Specified Parameters. Along with each are the minimum and maximum values for the parameter and the default value. The parameter value displayed in bold is the setting which should be programmed if the feature is not used. Low Idle Engine rpm:Minimum engine rpm which may be programmed to any value between 600 rpm to 1300 rpm range. Fuel-To-Air Ratio (FRC):This parameter selects an FRC Limit map to control exhaust smoke during acceleration. It is similar to the rack stop on mechanical engines. The ECM may set certain limits on the amount of fuel injected. When the ECM senses a higher turbocharger compressor outlet (atmospheric) pressure (more air into the cylinders), the FRC fuel position limit is increased to allow more fuel into the cylinders. Passwords
System Configuration Parameters are protected by Factory Passwords.Customer Parameters are protected by Customer Passwords. The customer passwords are programmed by the