My '93 Accord 10th Anniversary Edition doesn't shift right when the car isn't warmed up in the mornings. It starts out in 2nd and doesn't downshift when I slow down, so the car almost dies when I have to stop. Just recently, the tranny starts in 1st and completely skips 2nd and does to 3rd. car doesn't wanna down shift when I floor it. Could this be the tranny itself? or the ECU?