Guys I have a problem that I'm not sure where to go to correct. I have a 90 Civic sedan with that 1.5 in it. I was headed up the mountain here in Western North Carolina and the check engine light came on. I turned it off and restarted it and it went out. Same thing happened again on another trip up the mountain. I looked at the led on the computer and it is blinking one blink at a time. This chart I have says one blick is an oxygen content issue. Any suggestions on what I need to check or replace to correct this problem? Thanks guys.

 

Yes, one blink is the O2 sensor. Just replace it. Also, this is a tech or better yet a Ef question. If you have more car related questions ask in the EF forum. You will get many responses from people with the same type of car.

 

Thanks a million. I will do that.