I have a 69 restomod firebird with an e40 pcm. I have read that you can delete the prndl but I do not have and option for it. the only Option I have is a clutch interlock enable/disable option under system, general. Also it appears that the harness that was supplied by the customer has 2 pins backwards on the TCM. Pins 1 & 2. The brown wire for the TCC sol and the Green wire for the 1-2 shift sol. when driving it seems to only use 1st and 3rd. it never seems to shift into 2nd or 4th. 1st revs way out and slams 3rd and this is verified with log data. no rpm drop when 2nd or 4th is commanded. any help or insight is appreciated.