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we have a customer vehicle a duramax lb7 that will not command more then 22k of rail pressure. and just feels sluggish and kinda blah!!!!!!!!!! cant figure it out and dont think its in the tune tried lots of different known good tunes. any suggestions would be great.. no i cant share the tune because tuner has it locked down. i do have a data log if that helps
Post a data log. Make sure you have good PIDS for performance. See below
Pedal
RPM
VSS
Fuel Mainrate mm3
FRP des
FRP Act
Main pulsewidth in uS
MAF flow rate
Boost
FRPACOM (which is regulator performance)
Nick
