Fully rebuilt my f4i and it won’t stay running. I’m pretty sure all vacuum lines are connected as well as map sensor. Also got a new tps sensor so i doubt it’s that. been troubleshooting everything and can’t seem to figure it out. it’ll run around 1000 rpm but that’s only if the throttle is all the way open. tested spark and hopefully it’s not a compression issue, i’m wondering if it could be fuel related either with the regulator or something else. help is greatly appreciated.