Two problems related to check engine light on have been reported for the 1998 Honda Civic. The most recently reported issues are listed below.
O 2 sensor/ exhaust check engine light problem on my 1998 Honda Civic lx.
The check engine light keeps coming on in my 1998 Honda Civic. The dealer has already replaced the oxygen sensor once under warranty but now claims that the warranty period is over. The car only has 34,000 miles on it, and the oxygen sensor was replaced about 13,000 miles ago. I have found many other similar complaints on internet bulletin boards.