![Check Emission System for 2012 Civic came on when driving on Highway. I noticed that my fuel economy indicators on my dash only show blue now when driving for poor mpg (red Check Emission System for 2012 Civic came on when driving on Highway. I noticed that my fuel economy indicators on my dash only show blue now when driving for poor mpg (red](https://i.redd.it/check-emission-system-for-2012-civic-came-on-when-driving-v0-1fnwp7ill7z91.jpg?width=3024&format=pjpg&auto=webp&s=acc20f3e686c95b3e7402f06643f9e383d0e4bae)
Check Emission System for 2012 Civic came on when driving on Highway. I noticed that my fuel economy indicators on my dash only show blue now when driving for poor mpg (red
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