So one of the first things I did to my 03 focus 2.3 is gut the intake. I just cut the pieces I didn't want out, added a nice filter and ti ran great. Well, I was over my buddy's house and was going to change to a new AEM dryflow filter and he looked at my hack job and said I have tones of parts and couplings, we can clean this up. We took it all out, drank some beers, cut some pipe and put it back together. It looks darn good, but it won't run. It starts, rough idel for a few seconds if I am lucky, then dies. The check engine light is on. If I disconnect the MAF sensor it idles better, and runs, but not well, and dies above 2000 rpms. Is it the MAF? I called the autoparts stores and they said they can't get it. Call the dealer, but they're closed till monday and this is gonna kill me all weekend until I get it figured out. We cut the pipe that the MAF was in maybe vibration damage. It is weird. PLEASE HELP ME OUT HERE.