The ECM is a CM871, and the Calibration that was in my engine was the original from when the truck was new. My truck is a Pro-star with an ISX that has EGR and DPF. The process that I am about to share doesn't come from any formal training, but rather by the hours and hours spent via trial and error trying to figure this stuff out, and the bold willingness to risk my truck and its ECM for the purpose of engine exploration and the pursuit of the all mighty MPG.
Well, It will do just that, but the problem is that it is not very friendly and the help files are vague at best. It claims it is an engineering development tool used to monitor ECM's for Cummins engines with the ability to alter the calibration data. I am by no means an expert on this Calterm software, but I do know that there seems to be a serious lack of help out there on how to use this stuff. There has been parameter changes and additions in this Update Read the document carefully!!!!!!!! This document is an ongoing process, Check regularly for updates! Mama's EGR Milk Money. If your engine is one of the few that end up with a bad cal, downgrade your engine software. Others have reported that it can be corrected by using an older cal for your engine, then editing that instead. A couple of people have given me feedback, saying that a bad cal can be corrected by NOT using the features and paramaters option during a download. If you have done everything right, and your VGT position is above 69%, then something is very wrong.
Make sure it is at 5% during idle, unless you have specifically set it somewhere else. Start the truck and verify your VGT position!. = VERIFY YOUR CALIBRATION BEFORE REMOVING ANY HARDWARE!!!!!!!!! You should ABSOLUTELY verify your 'Milk Money' delete BRFORE REMOVING YOUR HARDWARE!, and putting the truck back on the road. Restoring your features using calterm will overwrite them back to their origonal values and could make your cal unstable. Some of the features and parameters HAVE TO BE EDITED, and are part of the delete. Doing so will land you with SERIOUS FINES!! = DO NOT USE THE BACKUP/RESTORE PARAMATERS OPTION IN CALTERM!!!! When Downloading your cal file to your engine, MAKE SURE THE OPTION TO BACKUP/RESTORE PARAMETERS IS NOT CHECKED. Hacking your ECM using Calterm III = WARNING! WARNING! WARNING! WARNING! WARNING! THIS MUST NOT TO BE DONE ON ENGINES WITHIN THE USA!!! There are steep penalties for modifying the emissions components on any engine that falls Under EPA regulations.
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