it can pick up stored codes, and i dont think its the tranny really. seems odd that it would hold back like that, but if you back up, it free's up, then drives just perfect? seems odd.

same thing happens to my car, my original trans blew up, it did it back then, used tranny in now for the last year, and it still does it once in a blue moon. but i feel it trip when it fails the abs check.