Take it back to your servicer and have him fix it right.

"nccft" > wrote in message
...
> Automobile: 2001 Nissan Sentra
> Problem:
> While driving the car after a gasoline full-up the "Service Engine
> Soon" light came on, and would not shut off. I checked that the gas
> cap was tight and let the tank run down, and filled up again. Same
> problem. Brought the car into my mechanic who read the code--P0464. He
> replaced the 'Gas Tank Sender' and 'O-Ring.' However, the problem
> still exists. The car needs an inspection, and will not pass with the
> above condition.
>
> Does anybody have any idea what's going on? Please Help!
>
> Larry