Did a service on my 06 530i with the 6HP19Z, new solenoids, new bridge seal, new sleeve, new fluid and pan. Shifter would move, actually trans wouldn't engage. Fluid level is good. Found tonight with my scanner that when the shifter is in Park, nuetral and drive the trans is actually in 1st gear. It will actually try to move in nuetral. What did I mess up and more importantly how do I fix??