i have a gen 3. i just tried the E-Z out and it didnt work. it was really stuck in there. so i drilled it out and i got the stock sending unit to go back in. I dont really want to mess with it anymore. haha. to the right of the stock sending unit i saw some other kind of sensor. it had two wires going to it. maybe i can put the autometer sending unit there? anyone know what it is?