Hey guys, new here. Working on a 13 legacy with 2.5. Friend of mine bought it and was told needs new Intake throttle valve as sensor was bad. She got used one but didnt have the coolant fittings off a 12. I bypassed the fittings and did relearn but will still not go over 5mph. Idles fine, no check engine light yet, drove around block and it died a few times, started little hard. Looking for any help to get her up and going.has 155000 miles. Mass flow sensor?