no there was no other codes besides p0748 and it did not shift into 3rd at all till i let off the gas i noticed this happening after installing the 3.4 pulley and when we had the hp tuner on it, the cars engine at the time of the jerking and hesitation cut back 5 degrees of timing and had 5 degrees of kr and i noticed that at the time it wasnt reaching 6000 rpms past 95 at wot in 2nd and it would not go past 93 mph its like it hit a rev limiter but there is none on the settings at all