6NZ File

Its pretty easy if you know the right people. I'm just trying to figure out if you know someone who can flash it, why don't they have the file already?

 

Use the oldest 550hp 6NZ file he has and if you want little extra power use a brakesaver file. I wouldn't recommend you change the trim codes, ever new turbo or not.

 

The MBN ECM limits what file you can use. The part number of the ECM is 240-5303 which isn't compatible with the old 6NZ files. Use any file that is for a 6NZ53999 or lower serial number, but has a newer release date for the best programming in the file. The injection timing or emissions won't change from a file written in 2002 to one written recently with these files. The changes in the files during this time frame have to deal with diagnostics and communication between the laptop and the trucks other computers, not emissions.

 

it's a cat file with the cat brakesaver program in it. it's cat's engine brake that works off the back of engine with the engine oil. like a hydraulic pump but it puts drag on the drive line with pressure as you pull the lever down.the program is setup with alittle more hp than normal programs.

 

Mr haney, can you reply to my question when you have time, sir. Thank you. What difference would i see in an older 550 file? Current one is 6TS 14926 set at 600hp. A friend said he used 601 hp 5ds file.
Cat ecm file for 550 5EK