Hello ,
I Rarely ask for help . But need a little bit of knowledge on Hp Tuner Software.
I Tune all 55 series car using ecm titanium . I usually adjust fuel + timing etc. Use Zietronix with a Ndash logger to log everything Iat boost timing fuel AFR etc. Making adjustments based on data collected with my logger. The M156 I decided to Hp tuners . The car has a weistec tune originally on a handheld mygenius. After physically swapping injectors smoke test o2 sensors coils ecm swap etc. The car would still have codes for misfire , even tho it never had issues and ran great . Occasionally On start up it would throw codes for misfires and decided im gonna retune it . Well after loading hp tuners supplied tune the car has no boost . I thought i would just have to add more fuel and pull timing . Well the car feels NA with hp tuners stock tune . I load the mygenius tune and boost is back . Since this was a NA motor to begin with , reading has to be by maf sensor , torque to load etc. I usally tune in 3d mode on ecm going back looking at the numbers for reference etc. Hp tuners supplies generic tune for the 2013 c63 . Am i getting the right file and just have to adjust torque to load or were do i start is the question . Of course i reduced timing alot and adding fuel . Wondering what in the tune is not allowing to build boost . It has a vacuum actuated bypass on side of the supercharger ... Any help would be much appreciated ..Thanks , Brian