That code relates to the vapour capture system from the fuel tank. It's usually caused by a loose petrol cap or a gummed up vent valve. I'd expect a leak in the fuel tank would also cause it.

P1457 can be caused by a loose gas cap. So if you have a leaking fuel tank, I would say it is safe to assume it can cause the same code as well. It is for an EVAP control system leak. Either case, if it has a leaking fuel tank, it needs to be fixed. Gasoline attracts moisture, so you do not want water in your fuel.

How do you know the fuel tank has a leak? check your fuel cap might need replacing. That code is related to a problem with gas cap. Or look for dripping fuel under the car where the tank is.

http://engine-codes.com/p1457_honda.html

Well you just hand over all that money to your trusted mechanic, or find out what the real problem is.

it can be as simple as a loose gas cap. minor hc leak.

1999 Honda accord

Check Engine Light: P1457

I have a fuel tank leak and I need it replaced ASAP. My mechanic said that is what is causing the issue of my check engine light (he's a very good mechanic and fixed a few of my check engine lights in the past) but some people on here are saying he is wrong

what do you guys think?