I was wondering if i could get a hand here with this intake i am making for my 05 focus zx4 ses. The stock intake is garbage. i bought some tubes to make an intake. fitted it all up, kept the stock vaccume hose and initial flex tube. put an elbow and a straight pipe with a square cut out for the mass airflow sensor. used blue rtv and universal cork gasket to fit the sensor into place. started the car and no check engine light. went around the block and when it hit second gear, the car started reving high then dropping down. i have no idea what the problem is. would i have to reset the ecu? if so how do i do that? Thanks in advance. im a brand new user to this site (forums in general actually). sorry no pictures, if it would help i can get some.