l5p

[04silverado6.0]

I pulled a l5p file and noticed a lot of the dtc are greyed out. I do have parameter access verified with another file. Why or when did this start?

[djv86]

you have to make or acquire the xdf files for the user defined parameters to be able to alter anything that is greyed out or missing.

[projectlnf]

What djv86 said.

Without the XDF/UDP files you?re dead in the water man! Been there done that!

[Wika223]

How do you create an XDF file? I just want to change from a hiss to rumble at idle on my 2019 L5P

[Wika223]

I just don?t know where to start . Any help would be appreciated

[slimmons2009]

You will need WinOLS with XDF Plugin, TunerPro and the A2L for the OS you want to create the XDF for.

[projectlnf]

As slimmons said you?ll need a lot.

Some of us already have this stuff but just to make an XDF for an L5P your looking at $2000 if your stupid lucky..

The L5P A2L is super hard to come by.