My daughter was driving her 98 civic and it overheated and started running poorly. When I got home it seemed to run fine but when it heated up I noticed the coolant fan did not run. I found the fuse had blown so I replaced it. The fan now runs but the car barely runs and the exhaust smells extremely rich.......Any ideas?

thanks.

 

I would suggest you check compression... being it was ok untill overheating... do a compression test.. if you dont have thhe kit to do it you can borrow it from most any parts store.

 

I have 140- 150 on each cylinder, the car has 250,000 miles on it.

Would an O2 sensor cause it to run that bad?

 

An 02 could cause it to run badly.... is it throwing any codes? CEL?

 

Check engine light = CEL