Started my truck tonight and noticed on my cts insite that my rail pressure Borg desired and actual were at 5.5-5.6 at idle on my base DSP5 tune by Rob, its a heavy tow tune.
What could cause this higher rail pressure? I usually see 4.3kpsi at idle...and of course after driving a minute or two it went back down to:4.3kpsi at idle
What could cause this higher rail pressure? I usually see 4.3kpsi at idle...and of course after driving a minute or two it went back down to:4.3kpsi at idle