That pesky code popped up again this weekend. The dealer ran the dianostic routine, replaced a bad sensor, changed fluid and filter while having the transmission pan off, and I replaced PCM with a rebuilt unit, so I'm not sure what else to have checked? Has anybody had this much trouble trying to correct this code? I hate to think with only 92,450 miles, the only solution is a transmission rebuild. Any other ideas I should look at? 2000 Sport with 3.9L and automatic (42re I think).