Accent 2001 1.6l has check engine light on after gas fill up

Discussion in 'Hyundai Accent' started by accent, Dec 31, 2004.

  1. accent

    accent Guest

    The check engine light on my 2001 Accent 1.6L came on after a gas fill
    up. The car drives fine and the dealer cannot look at the problem
    until next week.

    I have checked that the gas cap in on properly. What to do?
    accent, Dec 31, 2004
  2. Disconnect the ground cable from the battery for a minute or two. That will
    clear the error code from the computer, and reset the clock on the radio
    too. <G>
    screwtape iii, Dec 31, 2004
  3. accent

    accent Guest

    Thank you. You are the MAN!

    I am not the one to avoid maintaining my car but in this case it was
    just a nuisance factor. It makes me wonder what good the warning light
    is for if my dealer cannot take the time to look at it until next
    week. The garage suggested that if the light is not blinking and there
    does not appear to be anything wrong, I can continue to drive while
    the warning light is on until my appointment next week.
    accent, Dec 31, 2004
  4. accent

    theta Guest

    That'll certainly "clear" the code, but what's the point of doing that?
    You need to think about why the system is designed to store the code in
    the memory in the first place.
    The code with the snap shot of the engine parameters, other codes,
    history or pending, are wiped out when you cut off the power to the
    engine computer.
    The data are there to assist the mechanic to trobleshoot the problem.
    theta, Jan 1, 2005
  5. accent

    accent Guest

    Are you assuming that the system will always store a code that is
    meaningful? If a false trigger stores a code then will it preempt any
    future triggers?
    accent, Jan 1, 2005
  6. accent

    theta Guest

    theta, Jan 1, 2005
  7. accent

    accent Guest

    accent, Jan 1, 2005
  8. accent

    BillyGoat Guest

    Did you happen to leave the car running while you filled it up? Or maybe
    forgot to screw the cap on tight?
    In either case, if you have a Auto-Zone around, they will turn it off for
    you free.
    BillyGoat, Jan 1, 2005
  9. accent

    Geoff Guest

    One of the more common causes of this is that the petrol tank cap gasket
    (seal ring) needs to be replaced. This is usually a regular service item
    like spark plugs etc in EFI cars.

    Geoff, Jan 1, 2005
  10. accent

    accent Guest

    I would never leave the car running when I am at the gas pump. When I
    replace the cap, I listen for 3 audible clicks to ensure it is on

    In the event that the cap is not on tight and the check engine light
    comes on, will it turn off after it has been corrected? Also, if
    Auto-Zone turn the light off without correcting the problem then will
    the check engine light come on again?
    accent, Jan 1, 2005
  11. Yes. If there is still a problem the light will come back on sooner or
    The advantage to the Auto-Zone method is you will know the number of the
    code(s) before going into the dealer.
    screwtape iii, Jan 3, 2005
  12. accent

    hyundaitech Guest

    Most of these posts largely miss the point that clearing the code removes
    any ability the technician had to read the information stored in the
    computer and fix whatever problem may have been occurring, however
    intermittently, unless the trouble code and check engine lamp return. If
    you cleared your light and it did not come back on you may as well cancel
    your appointment. It's like telling them your car has some problem, you
    don't know what it is, and can give them no information where to look to
    find it. On the other hand, if you haven't cleared your lamp, you should
    NOT clear it, and take it in at the appointed time. As long as your car
    is driving normally and the lamp is not flashing, you should be okay to
    drive it for a week until they look at it. If you think that's too long,
    you can always take it to another dealer.
    hyundaitech, Jan 3, 2005
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