Well i went back to my shop and they said they made sure they swapped them. now they say that because the sensor went from full pressure to no pressure and back up some times they dont reset themselves...but then they called and checked with nissan and they said they should reset at 35 psi.... so i now have to go in on saturday to nissan of eastside to get it checked...

 

interesting... do any of them read at all? because if they work at all they will read a number on your dash... if they dont work at all then you will see nothing... i thought this was just an issue of low pressure at first... even if they are in the wrong spot... they will still show a number it just will not come into check with the tire location... soo if you had 3 reading 35 and one reading -... your prolly missing or have a broken one... if you had 3 reading 35 and one reading 0... that could be a different story.... hmm wow this response may or may not make sense i just reread it