X15 code 3382: EGR data valid but below normal

[marek4792]

(02-12-2026 )Rawze Wrote:  What was asked about your program is .. did some idiot 'Uprate' the hp in the engine?. ... this makes for the aftertreatment to act up like mad if someone did not put an exact matching file in it. - You can check it by listing your engine ser# on here, and by checking the program name at the top of the screen (in the title-bar for the window) in Insite while connected and listing it on here as well.. so someone can look it up to see if it matches.

There was a TSB specifically for Paccars on updating the factory file if replacing the old style EGR cooler to the new style. I imagine if doing one without the other would upset things?