I have a 1990 honda civic 1.5. Recently the check engine light has been going on and then the car runs very poorly, I think in limp mode. If I shut it off and restart the light goes off and it runs good again for a while till it goes on again Fault code show 1 (oxygen content). I replaced O2 sensor. Checked wiring. NOW WHAT?
1990 Honda CIVIC fault code 1
