GROMMET 4I4641 - Caterpillar

System configuration parameters are parameters that affect emissions, power of the engine, and other features. The parameters are programmed at the factory. In most cases, the parameters do not need to be changed. You must reprogram the system configuration parameters if the Electronic Control Module (ECM) is replaced and/or if you reprogram the engine rating. You do not need to reprogram the system configuration parameters if you replace the flash file. Proper values for these parameters are available on Caterpillar Electronic Technician (ET). Certain system configuration parameters are also stamped on the engine information plate.The following functions will be performed with an engine that has EMCP II:
Automatic Start/Stop
Air shutoff
CooldownNote: Changing the parameters that are protected by factory passwords may cause your Caterpillar warranty to be voided.
Engine Serial Number
Program the engine serial number to match the engine information plate. The serial number is not programmed on a new ECM.Rated Fuel Position
This parameter is used to set engine power. A factory password is required to change this setting.
Table 1
Minimum Default Maximum
Minimum Rack Engine Dependent Engine Dependent Acceleration Delay
When the engine is started, the ECM will limit the engine to low idle. The ECM will no longer limit the engine rpm when the following conditions exist:
The engine oil pressure is above 70 kPa (10 psi).
The acceleration delay is reached.Programming this parameter to 0 will disable this function.Note: If the engine is configured to operate in direct fuel control mode, this parameter is disabled.
Table 2
Minimum Default Maximum
0 seconds 0 seconds 60 seconds Acceleration Ramp Rate
The acceleration ramp rate is the maximum ramp rate of the engine rpm. The desired engine rpm will be set to low idle until the engine rpm reaches 400 rpm. When the engine rpm becomes greater than 400 rpm, desired engine rpm will start increasing until the required desired engine rpm is reached.Note: If the engine is configured to operate in "Direct Fuel Control Mode", this parameter is disabled.
Table 3
Minimum rpm per second Default rpm per second Maximum rpm per second
1 rpm/sec 250 rpm/sec 750 rpm/sec Low Idle
The parameter defines the low idle rpm.Note: If the engine is configured to operate in direct fuel control mode, this parameter is disabled.
Table 4
Minimum Default Maximum
810 rpm 1000 rpm 1000 rpm Cooldown Speed
This parameter defines the engine rpm during the cooldown period.
Table 5
Minimum Default Maximum
810 rpm 1000 rpm 1800 rpm Cooldown Period
This parameter defines the duration of engine operation at the cooldown speed. Programming this parameter to 0 will disable this function.Note: