Howdy,
Does anyone know if the ECM senses in gear based off of the pressure switch logic or the PRNDL range switch? I went stand alone for my 4L80E swap but I still need to tell the ECM that it's in gear or not. Debugging some issues with the PRNDL switch but noticed that while it reads the wrong gear it did change while the Trans Gear stayed stuck at 2 regardless.
Thanks