New(to me) truck with unknown tuning.

[Rawze]

Here is what I see in the file that you just sent me...


** This program (and engine ser#) is for is a CM2250 engine. It is not as common to see a 2013 model truck that came factory with with a CM2250 engine in it, ... but they are out there.

(program is significantly out of date) ...
== The program is very old (by many years) and contains known bugs that have since been fixed by the engine maker. What really needs to happen is that the ecm needs to be properly updated with the latest factory software (2020 or newer), vehicle settings restored, run for 10 minutes, and then the file made up again.

--- Aside from that ...
Looks like another one of those Canadian-made, garbage, engine killing ripp-off programs for the masses ...


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(NO engine operating mode control re-mapping has been done) ...
== Improper engine operating mode control re-mapping (or none at all) is one of the most common issues with bad delete programming. This also causes the biggest problems of all, as the operating mode control logic tree is hard-coded to create as much internal engine friction as it can + choke the exhaust all the time (using the turbo, over-spooling it) to warm up the now missing cans under the truck... but this condition can never be satisfied, causing the engine to perpetually be in this state... eating turbochargers up, beating liners out of the engine block, and all sorts of disastrous results, the severity depending on how hard the engine is worked.

That ecm has no kind of A.I. or any other kind of fairy fart dust fix-it sauce inside it. It is dumb as a brick, and once it simply sees zero degrees (or no feedback at all) from the emissions systems, blindly assumes they are not up to temperature, and the engine operating mode control gets stuck like this permanently. It slowly eating the guts out of the enigne (dropped liner, accelerated ring wear, accelerated wrist pin wear, turbo over-spooling and damaging itself, etc) going down the roads.

Here is an overview of the different engine operating modes found inside the ecm ...
ref: http://rawze.com/forums/showthread.php?t...0#pid16780

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(EGR request and assumption logic is all still in place) ...
No one bothered to correct the injection timing, fuel-air mix, or anything else for the engine to run without harming itself internally without EGR gas. The valve itself may have been disabled, but this has no effect on the ecm's demands or assumptions for EGR on the system. This is harmful and contributes heavily towards progressive damage over time to both the engine and the turbocharger. Another typical bad-delete mistake that is commonly seen.


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( The injection timing has been edited and is now significantly harmful) ...
== In many bad delete programs that I see every year, the injection timing is not edited at all. This is extremely harmful to the engine once that EGR gas is taken away from the intake. This is one of the most common misconceptions that these clowns that do these delete files have out there. somehow they have convinced themselves that the factory injection timing is not going to be harmful.. but they are dead wrong!.

Too far advanced injection timing is the fast track to beating a liner out of the engine block. It also causes accelerated valve seat wear, fuel impingement problems in common rail engines, and can lead to a hole burned right thru a piston. As soon as someone takes away that EGR gas.. the engines injection timing is TOO FAR ADVANCED across the entire spectrum. Not by a little.. but by a lot!. That ecm is dumb as a brick and has no magical fix-it sauce to correct this at all.

-- IN YOUR PROGRAM... someone has added insult to injury on it, compounding the problem greatly. Someone ADDED EVER MORE injection timing by several degrees + they used the very damaging A1 injection timing table meant for use of heavy EGR gas, copying it to other engine operating modes as well. this is well known to cause accelerated valve seat wear and fuel impingement problems... leading again.. to progressive engine damage over time.


( The Power/torque curve has been completely destroyed) ...
You have exactly the same engine killing, kindergarten torque curve as this guy did.. literally .. as shown in this post. maybe the same clueless fool who created that program made yours too?. - sad indeed.
ref: http://rawze.com/forums/showthread.php?t...7#pid69717

This is beyond some insane madness!!!.

(rt.click and choose 'view in new tab' to see a larger image).

(Turbocharger re-mapping was dine improperly) ...
== The turbocharger needs to be re-mapped to prevent it from over-spooling, over-boosting a deleted engine. Without EGR gas, the engine needs FAR LESS BOOST pressure to make the same power, and anything over a set amount becomes harmful/damaging to an ISX real fast. Different model ISX's require different max boost because of different engine compression rations on them.

>> For CM870/871 engines, max boost should be 37-38lbs .. even when making far more HP than factory.

>> For CM2250 engines, max boost should be 35-36lbs .. even when making far more HP than factory.

>> For CM2350 engines, max boost should be 33-34lbs .. even when making far more HP than factory.

>> For CM2350-X15 engines, max boost should be 32-33lbs .. even when making far more HP than factory.

== IN YOUR PROGRAM HOWEVER, someone has made the turbo extremely lazy for whatever unknown reason. It looks like they did not know how to properly set the turbo, so they just set it to a flat value across the board like a blind fool. It certainly is not set correctly at all.


== All in all, it is clear that whoever made this program had no absolute clue what they were doing at all, but rather just got the check engine lights to go away and added a bunch of garbage to it to make up for the fact that it would not run eight.,. adding insult to injury on it, to make it 'feel' like it ran ok again. This points heavily towards whoever made this program initially, really does not care about other people's engines at all. Looks just like some garbage that was hobbled together simply for the quick and dirty $$$, and could care less about anything else.

Welcome to the bad delete club.