^^ the fact that its even trying to shift into 3rd shows that the tweecer is working, if it was a tweecer malfunction it either wouldnt shift at all, or would just try to hold a gear out forever
im thinking maybe the TCU might have fried from underhood temps ?
and 17 psi was never done at the track, the 12.957 @ 108 was done on 12psi on a warm day, the 17 psi runs were done on the street on cold days, and never intentionaly
the boost has been set at 9psi for street driving, and thats the boost we used to run all the 1/4 mile pulls, except for the 12.957