I tried that when you have to turn your key to the position right before start and hold the gas pedal down for 15 seconds then remove key and restart car. That did work at first but some reason it stop working and continue the hard shift when put in gear, this cause me to replace the conductor plate, because code p0715 appeared and im still getting the hard shift when i place the gears in reverse and drive after replacing the conductor plate?? what could this be?