I've pulled these codes off my caddy and wondering if I replace the transmission solenoid will it help? This morning on my way to work I started the car on a cold start and when I went to put in drive. The car did not move, sat there for about 10mins till the engine warm up and finally got it to drive, but it still sputter like the trans is slipping (only happens on full stop)Will the Transmission solenoid solve this problem? P0731= incorrect 1st gear ratio, p0732= incorrect 2nd gear ratio.