Howdy All,
I've just been looking at a few tunes & seems some people upgrade/downgrade OP Sys & even files from different PCM Types.
Does anyone know what can & can't be done & whats better files to run with as I thought the calibrated file for the vehicle would be best.
The 1 in particular I noticed was a HACH4 with ASU224 module that had been changed/tuned with file HACH3 normally on ASU174 module, I would have thought it would be downgrading, but who knows maybe running an old OP sys on later module has it's advantages?
Anyway if anyone knows about what can will run on what module & what better op sys's are that would be awesome!
Cheers Grant