Re: Sprint booster
Yes, as per below:
1. Turn key to ON (not start) position
2. Press gas pedal to floor(feel little button go click)
3. Hold for 5 seconds
4. Keep pedal to floor and turn key to off
5. Release gas pedal
6. Wait 2 minutes and then start car.
If that didn't work, then I'm not entirely sure. Do you have the BDD451A model? I installed mine this weekend just gone and it worked just fine.
That said - have you made sure that the autobox is not in Winter mode?