4th gear pull from 40 mph to 80+mph. Motor was stuttering when peaking at 25 psi, it is over boosting terribly. Car mods (3.5 dp, 7.5 HD FMIC, cp, 3.5 tmap sensor upgrade, GFB DV+, and AFE 'cai') When over boosting, car through a code for the intake pipe; active code 281A- Absolute pressure sensor, intake pipe, electrical: short circuit to B+. And shadow code; 2820- Absolute pressure sensor, intake pipe: multiple faults