rmarcelle05 Posted September 11, 2009 Report Share Posted September 11, 2009 I changed my headlights in my 2007 mkx and forgot to reconnect my air intake sensor wires, then i started it and the check engine light was on along with a pic of a wrench, i realized what the problem was and reconnected the harness and the wrench went away, but the check engine light is still on. Is there some way to reset that without going to a dealer? I remember back in the day you used to be able to turn the key back and forth three times real fast. or will the light eventually go away now that the problem is fixed? If so, when? Thanks Quote Link to comment Share on other sites More sharing options...
druck52 Posted September 11, 2009 Report Share Posted September 11, 2009 I changed my headlights in my 2007 mkx and forgot to reconnect my air intake sensor wires, then i started it and the check engine light was on along with a pic of a wrench, i realized what the problem was and reconnected the harness and the wrench went away, but the check engine light is still on. Is there some way to reset that without going to a dealer? I remember back in the day you used to be able to turn the key back and forth three times real fast. or will the light eventually go away now that the problem is fixed? If so, when? Thanks The only way is to disconnect the battery cables and leave them off for a few minutes. Only other way is with a scan tool. The light will turn it self off eventually. It has to see a number of drive cylces with the problem fixed before it turns off, but that can take a long time. Quote Link to comment Share on other sites More sharing options...
rmarcelle05 Posted September 11, 2009 Author Report Share Posted September 11, 2009 The only way is to disconnect the battery cables and leave them off for a few minutes. Only other way is with a scan tool. The light will turn it self off eventually. It has to see a number of drive cylces with the problem fixed before it turns off, but that can take a long time. Thanks, I'll try that, I knew you could do that with older cars, but wasn't sure that still worked. I know these days they want you to bring a car in to the dealer for anything possible to try to get money out of you. Quote Link to comment Share on other sites More sharing options...
Platinum White Posted October 13, 2009 Report Share Posted October 13, 2009 Take it to Auto Zone or O'Reilly. They will reset it for you FREE. Quote Link to comment Share on other sites More sharing options...
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