My CEL has been coming on and off for the past week or so. I have taken it to several mechanics and parts store to get a reading and no one was able. I seen a post on here saying to use a paper clip and I did. It came up with ECU Code 13 BARO - atmospheric pressure sensor. Where would be a smart place to look for a new ECU for my civic?

 

Google is a good place to start when looking for used car parts.

 

or the marketplace here, or ebay.

some of the guys here that chip/repair ecus may actually be able to fix yours too. its worth asking.