My car allready has a problem with a sensor that when its on "D" its below 1 RPM i think And sometimes if i where to stop it would turn off. But now a new problem is up and its that it wont pass gear 1 and the Overdrive starts blinking... Could this be transmission or the sensor itself. This just started today as i was driving. Ill be Online if anyone could help me. Or give me some tips. THX
I allso added some new Transmission oil but it didnt work. ( R ) works Fine. If y put it in ( L ) it works and remove the overdrive flashing but if i added it to ( 2 ) same problem as in ( D ).

My RPM Sensor was not working from the start. Do u think this could allso be it ?