Just installed my long awaited skunk 2 TB and stock upper plenum (some of you know that I had a huge nissan throttle body welded onto the plenum that came on the motor). After I swapped everything over, I test drove it and threw a code 12 (egr). Now it idles around 2500 and when I adjust the throttle cable, it goes down but then it goes back up after drving a little. I haven't had time to adjust the actual idle screw because ther stupid thing is on the bottom of the TB. Anyways, i made sure that all my vacuum lines were connected. If you guys can offer me any help, please do.