So I’m cheap, and wanted cheap noise. So I bought that really cheap hundred dollar intake that you can get off eBay or Amazon. Notice that it doesn’t have secondary air injection, and it’s only made for the cobalts they were made without air injection. Then I realize the only intake that excepts that is the $600 K&N one. So I just said effort, and I ripped out the air injection hose and installed the intake without a second thought. Sometime goes by and I love the intake, make some great sound. But PO4 11 is coming up. So me and my buddy went to Lowe’s got some tubing and teed off the intake hoses. So there’s one T going into the intake, one T going into the secondary tube, and once he going directly into the valve. So there’s one T going into the intake, one T going into the secondary tube, and once he going directly into the valve. Drove home and everything seemed fine, my mpg went up slightly (it went from 22 to 16 and now it’s almost at 19). Then P 0411 came back again, I desperately need help to fix this since I have emissions soon and I’m too broke to be burning this much gas. Oh and before you say just put the stock intake on, I already got rid of it.