hello i just got my subaru running. it runs good but im under the impression that is using way to much fuel. im trying to figure out what could be the cause. i know one of the sensors on the uppipe is no longer being used. its bypassed with a resistor can that have anything to do with fuel milage. the car has all the mods to run stage 2 but has not been tunned yet. anyone ever dealt with anything like this.