cornish6544 Posted October 15, 2016 Share Posted October 15, 2016 My wrx is mapped with a simtek ecu and seems to be ok for fuel for a subaru but i would love to be able to track my mpg like you could in a modern car. I am just wondering if there is anything you can buy to maybe plug in to read my mpg accurately also as I'm not sure how accurate my fuel dial is. Quote Link to comment Share on other sites More sharing options...
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