Hey, sorry, been a few days since being on here. Yeah, i have the older style intake 98-00 and when i installed the headers, i removed the air and egr systems, so i went to the parts store and bought a 1-3/8" expansion plug to fill the hole where the egr tube was going into the intake. Problem solved!

And it did finally throw a code right before i fixed it. It was something about abnormal manifold pressure or something like that.