I've researched this forum for some time, but couldn't find any answers to my transmission problem. It always happens when the car is stopped, after a couple of seconds the transmission enters failsafe mode and throws the code 3B stall speed P0720. It doesn't matter if the transmission oil is hot or cold. The battery is new. Alternator is new. Did the full rebuild of transmission. (New composite discs) New oil heat exchange and lines. New oil and filter. New sensors (Input, output and inside transmission harness). New transmission oil pump. New torque converter. Tested a new EGS, no luck on that, still throwing the same code.
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