last night i raced this guy in a new v6 eclipse and when i got to around 13psi in 4th gear(around 4500rpm), my car started stumbling really bad and my shift light kept flickering on and off and there was a beeping sound that kept coming on and off. after i slowed down, i couldnt get the needle on the boost guage to go above the A on vac. with out it stumbling really bad. and my check engine light is still coming on when im decellerating in gear. please help!!!