Hey green pants, that damn 401 car started going in the pit again after 6 weeks of no failures, it is now going occupied once a week. Every board, power supply, encoder, cop board, has been replaced with a known good car. The only thing we have not replaced is the ppt. I have talked to Otis role many times now, and nothing seems to be curing the problem. I have done terminal slowdown tests on the car and it never buries itself into the pit where it can't recover on its own. Role does not believe it is the ppt, as when I monitor the system with omt tool, it says the car is 9.2 feet or so, about a foot below the floor . I have run out of ideas except to replace ppt, what do you think, can u ask around. Also, I continue to get Pcf failures when doing the 40 test, last count was 35 after 9999 runs. One thing i did notice last time was 5 bps failures, but this car does not have a brake switch, it is an mg geared job. Still have never seen even a hiccup, after many days of running and playing around with this unit. I'm beginning to think the brake may be hanging, but it looks good. One last clue I see no LCF failures on the 40 test. The role guy says if the car is not hitting the floor at other levels I should be recording LCF failures. Car only goes into bottom limit. I'm about to throw in the towel , and ask for a field engineer to come by, sure would like to fix this one.