How do you reset the check engine light on a 1997 Mitsubishi Eclipse?

This is out of the haynes code book. Disconect the negative battery cable for thirty seconds.

Simply removing the negative terminal from the battery for a couple minute and put it back. that should work

If light keeps on apperaring, you should replace the oxygen sensor located on the headers.

Why would you replace the oxy sensor for no reason???????!!!!!!!

Get Auto Zone or Advanced to pull the codes for you first for free, then take action and fix it.

Sorry for the redundancy, but disconnecting the battery will reset the system. If the check engine light comes on, the most common problem is a bad oxygen sensor. That is why it was suggested that you replace them. If they are bad, you will be getting reduced fuel economy. There are 2 sensors: one before the catalytic converter and one right after the it. They are easily accessible, so replacement is easy.

; Another very common reason for check engine is a loose or bad gas cap