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Discussion Starter · #1 ·
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?
 

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Discussion Starter · #3 ·
Look at the small black rubber grommet on the opposite side if the other hoses

Auto part Vehicle Engine Tire Pipe




Auto part Vehicle
 

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Discussion Starter · #5 ·
Great thanks instructions didn't mention that.
 

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Yup good help. Just plugged my with a short bolt.
 

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Discussion Starter · #8 ·
I just put a short 3/8 bolt in mine and so far no service engine light fingers crossed
 

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Yeah thats not a bad idea. Im probably gonna switch back to stock intake soon. Whenever i find time.
 

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Discussion Starter · #12 ·
I have no cats and no codes before cai I think it is fixed with the bolt no codes since putting it in.
 

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Discussion Starter · #14 ·
What sensor? Mine is a 03 GT there is nothing to put there. I was told that is for 96 thru 99
 

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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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Discussion Starter · #18 ·
Ok whole tank gone and no more service engine light since I plugged the hole with the bolt. Yepiiiiii.looks like that was the problem.
 
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