I bought a CAI for my 03 GT and now I am getting a p0420 code which means I am running lean. Is there a way to fix this? My CAI has a rubber gromet wiht a hole in it that let's unfiltered air in should that be plugged up?
You should have vacuum hoses connecting to all of the holes on your CAI.
If you look at mine, there is a blue hose and a black hose connected to my CAI.
What brand CAI is it? I know on my K&N it did mention you might have to drill a hole in the intake for certain model yrs. Im assuming your intake had that hole predrilled. I am very happy with my Typhoon system.
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