Cummins Calterm What is it for and what functions does it have?

Calterm Cummins software is a tool that allows access to the internal calibrations of engine control modules for the manufacturer Cummins. By downloading these files, modifications can be made to certain internal calibrations.

This software is very useful when specific tests need to be performed on a machine.

The importance of knowing how to use this software lies in the ability to modify the operating parameters of the ECM (Engine Control Module) or engine control computer.

It is important to clarify that, if you make permanent modifications to an ECM, it can affect the machine's emissions system, which in some markets is subject to verification by government entities.

What parameters can be modified using the Calterm Software for the manufacturer Cummins?

Next-generation Cummins engines come with many new features, designed to increase their power, performance, and compliance with regulations.

Some of these systems installed in this type of engine are:

• EGR: Exhaust Gas Recirculation.

The EGR valve is installed with the purpose of recirculating many of the gases that exit through the exhaust and directing them back to the intake system.

This means that these gases or fumes are led back into the combustion chamber within the engine cylinder.

This achieves a reduction in NOx or Nitrogen Oxides.

• VGT: Variable Geometry Turbine.

The variable geometry turbo system is a novelty compared to traditional turbochargers.

This system has an actuator that allows modifying the position of the turbo vanes, achieving superior efficiency and speeds.

A drawback that arises when modifying the EGR parameter in a Cummins ECM is that the exhaust gas temperature is no longer regulated.

New VGT systems are not designed to withstand these types of temperatures when there is no control from the EGR.

Therefore, special programming procedures must be executed to avoid affecting the VGT system.

• FAULT CODES: Permanent Fault Codes

This occurs when parameters within the ECM are modified, and components are permanently disconnected.

It is necessary to modify the ECM's programming tables to clear permanently active Fault Codes, which in most cases "slow down" the machine.

Calterm Cummins Metafile Archives

A concept you must master to start with the Calterm Cummins Software is the famous Metafiles.

Calterm Cummins Metafile Files

These Metafile files are data structures that are installed into the memory of an ECM and contain data maps with certain engine performance modifications.

The most common file types are: E2M, EFCG, and BIN.

Therefore, it is essential that you master the use of the INCAL Cummins library, which you must install with great caution.

Setup for Working Professionally with Calterm Software.

Because the use of this software requires a lot of concentration, we recommend having a Diesel programming lab, where you will have a basic setup.

ECM module to modify EGR VGT using cummins calterm

1. Exclusive laptop for Calterm Software and others. It is not advisable to use the same computer for other purposes.
2. Use of interfaces with communication protocols accepted by the ECM. This interface can be Cummins Inline, however, other interfaces are also accepted.
3. Always try to use reliable and original diagnostic tools, otherwise, you run the risk of permanently damaging an ECM.
4. Harness to connect the Cummins ECM.
5. Regulated voltage source, to supply power to the ECM during the diagnosis and programming phase.

If you wish to gain access to these types of professional tools, as well as other diagnostic programs, we invite you to join the OBD TECH TOOLS family.

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