I have a 99 Chevy Cavalier the check engine light came on.....?

[x_x_levithain_x_x]

I took it to auto zone and they told me it was the fuel tank Pressure sensor. But I called firestone and they said there is no such thing. But on the screen at auto zone it showed the part. I was wondering if anyone could help me figure out whats right and/or how easy it would be to fix myself..

[Mr. KnowItAll]

Maybe you should go back to Auto Zone and ask them.

I personally have never heard of one.

Try replacing your gas cap first. It's cheap and easy.

[LOUIZIANABOYZ]

Well, I googled it for your particular vehicle, and it turns out there is such a thing... On eBay, it's $70... Now whether or not it's the problem is a gamble, but if it's the only code on the machine, then you should take your chances changing it, just make sure there's not another code in there, that in fact made the sensor go out, because if you don't fix that also, the new sensor will just go out again.. As for changing it out yourself, I don't think that would be easy because it sounds like the sensor would be inside tank... Which means dropping the tank, only after you're almost on empty, figuring out where that sensor is, and just detach and replug, hopefully... Any shop you go to, to do that will probably hit your pocket pretty hard... Ask some relatives or friends first if they have any experience, or you can search online for directions, and may be more informing on how to change it out yourself... GOOD LUCK!!!