check engine light

RUSSELECK · #1 Mar 12, 2008, 01:14 AM

hi every1, I have a 91 honda civic si that I have replaced the o2 sensor on and the check engine light still wont go off. can any one help?

novaman · Mar 12, 2008, 03:32 AM

You need a scan tool to verify it was a faulty 02 or something else. You will also have to reset the ECM. It won't do it by itself.

topladyj · Mar 12, 2008, 03:05 PM

agreed disconnect the battery cable and it should go off. If it comes back on after reset there is another problem somewhere. Good luck!



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