Service Engine Soon light still on

Discussion in 'General Motoring' started by Osgood Z'beard, Nov 5, 2005.

  1. Hi:

    I've swapped out the temperature sensor, which had been fluctuating
    nonsensically and caused me to flunk the emissions test, with a new one,
    but the "service engine soon" light is still on. Does it go off
    automatically when everything is fixed, or do you have to switch it off
    manually somehow?
     
    Osgood Z'beard, Nov 5, 2005
    #1
  2. Er, forgot the specifics. I have a '98 SL 4D with a 1.93L engine.
     
    Osgood Z'beard, Nov 5, 2005
    #2
  3. You can unhook the batery for ~15 minutes (and loose your radio presets),
    or take it to your local AutoZone and ask them to read & reset the codes.
    It should eventually go away on its own, but the code probably will still
    be stored, which may cause an issue with your emissions test. Here in MO,
    OBD2 cars must have no codes set, and have passed all on board readiness
    tests.
     
    Kevin M. Keller, Nov 5, 2005
    #3
  4. Osgood Z'beard

    R & K Bilyea Guest

    This is an easy one...

    remove negative battery cable, turn key to on position, turn lights to on
    position, go drink a beer, come back and do the reverse of the above. Light
    will be off, radio presets will be gone. If the original condition still
    exists, your "SES" light will come back on.

    Cheers,

    Randy.
     
    R & K Bilyea, Nov 6, 2005
    #4
  5. Osgood Z'beard

    p_vouers Guest

    sure can't see how a cts can fail your emissions test.. and it usually
    doesn't through a code. You should have the code read at autozone and
    post the code number or numbers here.
     
    p_vouers, Nov 7, 2005
    #5
  6. Thanks. It eventually went off as Kevin suggested it would, and thanks
    for the autozone suggestions. I passed the emissions test so am good to
    go (except that I think my clutch is slipping or my transmission is
    getting sloppy).
     
    Osgood Z'beard, Nov 14, 2005
    #6
  7. Osgood Z'beard

    John Horner Guest

    Get yourself a handheld code reader. It will also allow you to turn off
    the light. Guessing at what is wrong and hoping that the light will
    turn off is a horrible procedure.

    John
     
    John Horner, Nov 21, 2005
    #7
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