96 saturn sc transmission problem

i have a 96 sc saturn it has a automatic trans the car is on its 3rd trans it all starts the same i get a couple of jerks and it seems like the trans is shifting between first and second gear then the check engine light comes on. i installed this transmission about a year and 3 months ago and here i am in the same position i have checked all the sencors that i thought could be the problem. i have a auto x-ray 2000 and i have got the same codes as the last trans. P0732 gear 2 ratioincorrect, P0741 torque converter clutch circut preformance or stuck off i also get a pending code of P0782 2-3 shift malfunction. i have not got a P0782 code yet with this tranny. but im sure i will soon. im not sure but i think it might have something to do with the valve body anything would be helpfull thanks. just incase it will help the vin # is 1G8ZK5270TZ136311 once agian thanks, Derek