friens3

Hi, I have an 2001 Rx300 AWD and the transmission is very rough shifting from 1st gear to 2nd, but it has no problem reaching 60mph my Indy has replaced a new transmission , but the problem is still the same. He has checked the ECU , no problem, and no error codes. He also cleaned the speed sensor, knock sensor, neutral safety switch as suggested on the forum without success. does anyone know where else to check?