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Mik352tds and I are still sorting out the 6HP26/28 differences. The solenoids and their activations do seem different. However, at a high level, that is not going to matter. Just like in engine ECUs, certain maps have certain kinds of patterns. An EGR map, for instance, is not too hard to identify in any ECU just because of its characteristic shape. I am learning as fast as I can what 'shapes' are in a typical TCU calibration. Here's a teaser. This an easy to find map in the calibration file. The peak has a value of 4648. Hmm sounds like our WOT shift point doesn't it? Still trying to figure out the axis.
BMW info is hard to find. But if anyone has any insights into the FORD 6R60/6R80 transmission, that would help. They are ZF licensed replicates. Also, if anyone has any experience or know anyone with exerience with Powertrain Control Solutions software, that would also help. Apparently, they have recently buttoned up their website and I no long have access to their documention and software updates.
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