once we start the car the engine starts to rev up&down with out stepping on the pedal..then when i put it into reverse it doesnt move and when it does it starts to hesitate...ok then i throw it in drive and it goes up to 20mph then my rpm starts to go high and after a few seconds of it stuck on that it jerks really ugly then my neutral light starts blinking while im in drive. it will take off but at every stop it has a slow start..please can anyone help me with this..info=i changed my o2 sensors, transmission oil is good, spark plugs are good also...

 

time to get the trans looked at. neutral light flashing indicates trouble codes set and trans is in fail safe.

 

thank i am going to get that looked at..