P0457 Honda -

Question

I have a trouble code PO457 on my 2007 Honda Civic Lx. I replaced the gas cap with a new dealer cap. I still get a check loose fuel cap and a check engine light. I also have tighten the conection with the fuel fill vent line. What should I look to check next?

Answer 1

unless the car has been in an accident that could have hit or moved the neck filler or something else related to the EVAP system replacing the gas cap should have fixed the problem.