I have had the evaporate sensor replaced 3 time in four years. each time I had to pay half of the total cost to have them replaced. next time I have to replace it at full cost 400.00. Dealership told me why the sensor went bad is because I filled my gas tank to full; but the dealership told me to only fill it 3/4 full and I will not have any problems; which is hard to believe that this will not happen again.