I recently ordered the Hahn CAI from Modernperformance about 2 and half weeks ago, and the intake is giving me wacky A/F ratios and throwing "to lean at idle speeds" CELs. I do not like the intake, it sounds nice, but the Breather hose connector keeps falling off and im sick of it. It doesnt snap on like the stock connection so it just comes off. What should I do? I want to send the intake back, but idk if I can. What would you do?

 

you wanna know what some people are doing to keep the breather hose on get ready for this Ready....black tape on the fitting! Yes you got it right, you get to put black tape on you expensive new intake! cogratulations! Also if you have a tune many people are going back to stock because of all the issues with cai's throwing cel's. Clear image's intake (GB starting soon) has the proper fittings and won't throw codes.

 

I have written to Hahn myself about this same problem. In the mean time I extended the breather nipple with an additional piece of 3/8" steel tubing and compression fittings. If you can make the entire nipple about 5" long then the breather hose will stay on without the need for tape. So far the car is running perfectly...

 

i think im gonna invent something that will fix this problem, even though mine works fine.

 

Contact Hahn its what i should have done right away but i waited. But when i finally talked with Aaron at Hahn they were more then helpful with my issue

 

hahn just told me that they would send me a longer tube thing if repositioning the intake didnt work , thats crap, im gonna fix it myself and let u guys know. i threw a code and went into limp mode the other day on a no lift shift, engine light came on and when i tapped on the gas it all went back to normal, looked under my hood and the hose had come half off.

 

Brian's Hahn intake is also causing issues on his car. Really rich A/F and misfire codes poping up. No good if you ask me. I am glad I did not buy Hahn's intake. I almost bought AEMs but it was more expensive than Dejons.