Need help...fuel tank pressure sensor circuit low

[MARKSSTANG]

My check engine light came on recently so I pulled the code... "P0452"

I looked it up online and it says something about a fuel tank pressure sensor circuit low. The general coding tells me it's something to do with the evaporation system, but I would like to get this fixed! Can someone point me in the right direction? Might I have a leak, etc.?

Thanks

P.S. I had a forged longblock put in and am running about 10.5-11 compression I have been driving it a couple months now before this light came on.

 

[DerekStangGT]

im guessing you dont have an extensive amount of diagnostic experience or tools, so i would start throwing parts at it, unless you want to pay big $$ for a diag at the dealer (we charge a MINIMUM of $100). i would start with a new fuel cap, clear the code, and go from there. if that doesnt fix it, try slapping a new sensor in there and see if that fixes it. if not, then extensive diag is necessary.