Anyone have a link PNP for the M50? I have one for my 325IS and it puts my trans in limp mode. When the stock ECU goes back in, limp mode goes away. As far as I know, and what Link has told me, their ECU is 100% compatible with the auto trans. I see there are 2 digital inputs for the TCM, one for "Timing Intervention Request" which is DI 4 and is turned off and the other is "Automatic Trans Range Switch" and that is set to "Neutral/Park".