2007 Pete 379 cat acert c15. Loss of power and engine shakes or shudders under load

The harness is burn because of wrong voltage. //correction

 

He does have some validity. Always start with the software tune on ecm first. Install a non cat program then run if it still does it ur ecm could be off voltage but with no other symptoms it's unlikely. At that point total the truck lol. Make sure the tune u choose uses a standard diagnostic coding structure similar to cat.

 

It's way cheaper to tune a truck then to piss with everything

 

I responded

 

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The problem is the delete file.. it keeps burning up inside wire harnesses.. i finally got a true delete file and problem solved..

 

Im guessing your truck has a delete tune? If so then its probably the file.. you need to find someone who has a true delete file otherwise it still sends/ reads power off the iva housing. Some trucks do good with delete files. But some dont.. and only way to fix is to find a true delete file and that should fix your problem.. or tune back to stock

 

Have a Cat C15 Accert, get into 3-4 gear at the top of the gear with load on and it starts lacking power. Changed fuel, air filter problem still the same