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  1. Check engine light on after installing E85 flex fuel option

    ECU & Electrical Modifications
    Hey guys, I was hoping you guys could help me get some insight on a problem I wanna resolve. I have a 97 Subaru Impreza Wagon with a EJ22 in it. The previous owners before me had a flex fuel option installed so the car can run ethanol if I hook it up. But the check engine light is on and has...