Question about 1994 Hyundai Sonata

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'check engine' light remains on.

This light remains on with no apparent engine problem. I have been driving the vehicle for the last two years with this light on all the time. I like to switch this indication off . Could any one tell me how to do it?

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You need an OBDII scanner/code reader to do this. The light is on for a reason which could be as simple as a loose gas cap, faulty sensor or as big as a failing computer, etc. The light can be shut off easily with the right tool but it will come back if the problem still exists. Best way to shut it off is to have the problem fixed and the "trouble codes" cleared. Most of the time you will have no symptoms with a check engine light but the longer you go without addressing it, the more chance there is of consequential damage to other systems/components. NOTE: Most state emissions will fail your vehicle just for the light being on...
Good luck

Posted on Sep 16, 2008

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