Full de-mandate on a 15 litre Cummins

[Rawze]

(05-01-2025 )Fleetman13 Wrote:  ...
I’m not saying that cummin training isn’t a crock of shi#t. They’re in the business to make money. I am by no means “brainwashed” on what they sell I have a mind of my own and am well aware of how Cummins tells you to do their procedures. It’s nice to mainly be able to use quick serve to look up part number and being able to have the service manual available for every ESN built by Cummins for torque specs and so on. I will say if your new to the diesel world Cummins training will help you with the basics but as a mechanic you have to have a mind of your own and realize that a lot of these diagnostic trees while having hit and miss info can give you somewhat of an idea on how a component works if your completely clueless, for example a DEF injector is supposed to dose out .3 of a gallon of DEF an hour or at least on a 6.7 some stuff is helpful but if they told you how all their stuff worked then they’d make next to no money on their parts because it would keep people from slamming a DPF on one ever so often when in reality there’s a very good chance you have sooted up EGR ports. With enough experience you can drive one and tell if the EGR ports are stopped up cause there is a sluggish feeling to the engine or it will regen every 3 engine hours that’s where having the ability to look at advanced ECM data will separate experience from anything else.

It sounds to me like your on the right road with this stuffs anyways.. but have somewhat reached your limits as to what you can see and do.

It also sounds to me like you are ready to also upgrade what you know, leaning towards the realm of 'what they don't want you to know'.

Your posts imply that you have a need to start getting your feet deeper into the water and into using Calterm to greatly increase your working knowledge of these engines + advance your troubleshooting abilities. To start to see what is actually going on behind the scenes. The stuffs that the kinder-garten level of tool (known as Insite) is not showing you. The Insite software only shows you less than 3% of whats actually going on when trying to troubleshoot one of these red engines, and keeps the typical repair mechanic completely blindfolded.

The things like what actual engine operating mode that the engine is selecting, and why, ... and what the emissions system state currently is, and that the Aux. emissions systems are doing, + and all the things needed to actually troubleshoot an engine fully. All the stuff that Insite simply will not show you.

-- That part of things is what the mumble voice-chat server is for...
ref: https://rawze.com/forums/showthread.php?...8#pid83648