'12 ISX15 demandate woes...

[Rawze]

(10-07-2021 )NDISX15 Wrote:  

(09-24-2021 )RollinCoal Wrote:  Send me a pm
Ill share a couple screen files that will show you the just of the tune

After being busy as all get out lately, and then getting the 'rona and being down almost a week....I have finally downloaded the cal, and have sent it off to Rawze just now for review. Either way I think I'll be looking for some custom tuning somewhere to get this motor adjusted a bit better for what the truck does.

RollinCoal - PM Sent, and much appreciated!

Rawze - Anxiously awaiting your thoughts and findings on the cal.....sorry for the big delay :/

It looks like a very early (and out of date) version of the 'Africa' overlay file was used to make this program. It is not particularly harmful in itself and should not risk engine failures... the program is not considered harmful like a of of de-mandates are. Things like engine mode, injection timing, fuel-air-mix, and other things are in place properly.

however...

It looks like someone tweaked it to try to make the DEF gauge work and left a bunch of the after-treatment systems turned on. this may lead to a potential derate art some point with no explanation as to why.. that need to be kept in mind.

Also it is desperate need of an update. there are better injection timing and other settings in the newer versions of this 'Africa' that are not in your program. Your truck would benefit from the update.

* The only real mistake that could potentially be harmful is that someone did not set the upper limit bounds for the turbo. This was not like this in the original Africa overlay file, not even in the out of date versions. Someone did this separately ... and it can allow the turbo to over-spool on occasion. It is risky at best.. I will give it the benefit of the doubt, but I would not have done such a risky thing to a $4,000+ turbo.

-- So .. This does not qualify as a 'Bad' delete particularly .. but there are things that can be improved with it. You are one of the few that occasionally come on here that have gotten lucky .. and is why I say that 95% of all files that i review are bad.. and not 100% of them.

This file can very easily be corrected and updated to the latest (Africa version 'J') by simply fixing one table in it and applying the newer version of the overlay on it. It is likely though that the DEF gauge in the dash of the vehicle will not function any more if it is currently working, as the overlay shuts off the after-treatment systems all the way to prevent any future ghost issues. it is also likely to have a slightly improved enigne performance too after the update. So

That is what I would recommend. That the file in your truck be simply updated to version 'J' plus the one table fixed, and not replaced completely.

I have already done this to the file you sent me .. it is a matter of how you want to go about getting the file back into your truck. Whoever helped you pull the file out for review .. should be able to sent the updated file back into the ECM as it is almost the same process. Just let me know who/where you want the updated file sent to in a PM message.