2002 Sonata LX Check engine light

Discussion in 'Hyundai Sonata' started by Dave, Jan 1, 2007.

  1. Dave

    Dave Guest

    Hello,

    While driving home last night my check engine light came on. The code is
    P0449 (Evaporative Emission Control System Vent Valve/Solenoid Circuit
    Malfunction). I've noticed for the last 2 weeks while filling the gas tank
    the gas nozzle keeps resetting. You have to constantly reset the nozzle
    until the tank is full. Obviously the fuel inlet vent is not working
    properly hence the code. The engine was running while I was getting gas and
    I have not tried to fuel it with the engine off yet. What do I need to check
    next?

    I have 135,000 miles on the car so it's no longer under warrantee. I put the
    car on my lift and can easily get at the fuel system so physical repair
    shouldn't be to difficult.

    Any help would be greatly appreciated!

    Dave
     
    Dave, Jan 1, 2007
    #1
  2. Dave

    B Crawford Guest

    I had a similar problem with my 2001 XG a year ago. I can tell you on my car
    what caused the code to be set was a completely clogged very small filter
    located behind the left rear wheel well. This filter provides the air flow
    to this vent valve. When I first took it apart I simply cleaned the caked
    dirt & mud off & it lasted another few months, but when the code appeared
    again, I then changed the filter as well & all has been good since.
    Hope this helps a bit,
    BCinSnowyBC,Canada
     
    B Crawford, Jan 2, 2007
    #2
  3. Dave

    Dave Guest

    Thanks B. I had just found this filter right before you posted. I blew it
    out, reassibled everthing and can now put fuel in the tank without issue so
    I went ahead and ordered a new filter.

    Thanks again,
    Dave
     
    Dave, Jan 2, 2007
    #3
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