where is the fuel tank pressure sensor on a 2006 acura tl?

P0457 typically means the fuel cap could be loose or missing, or a leak of your evaporative emissions system in general is present. P0497 means your evaporative emissions system has low purge flow. Testing must be performed to find out what is going here. The Fuel Tank Pressure sensor could be at fault, but there is a test routine to follow before guessing. The FTP sensor is located in the evaporative emissions canister, which is under the vehicle near the fuel tank.