one of my saturns is a 2002 sl2 auto. transmission was not working properly was going into 3rd gear and come out every now and then mostly when cold. had a code for 3rd gear incorrect ratio. so yesterday i got around to changeing the tranny. i put one in out of my 99 sc1. when i first take off it goes fine untill it goes into 4th then slips. slow down then it stays in first, im now getting a codes for 2nd,3rd,4th gear incorrect ratio. fluid level is ok. everything is hooked up. anyone have any suggestions? Thanks