Well, I have pulled the tube out several times. It does build up a carbon layer on the walls quickly. I pulled the map sensor at the same time and clean it too. It really gets clogged up. Takes a T40 and 5 minutes. Unless it is completely clogged, I doubt it would clear a code, but anything is possible. You can see the junk on the walls of the intake when you remove the tube. I have sprayed my inside down with a throttle/carb cleaner. Then put the air hose in it until it was dry then blew it out for a while. A LOT of junk flies back out the hole when the blower is on full blast. However, if you do complete the delete, I personally would invest the money in a new intake, or have a shop put it in the parts washer. It will look like a new one and probably save you a good deal of money. I have been speaking to a shop in Canada. They can send delete kits here, but you have to send them the DCM to flash. They told me if I have any codes, clear them then send the unit. Once they flash the ECM and you install the delete, you will not see any more emission codes. I am very close to ordering it. My warranty is almost up. I see you are in Ohio. Don't they have state inspections? If they do, you will not pass with a delete.
