I recently installed kn fipk intake, and check engine came on. i took it to advance they said indirect flow of air, all the lines are correct as of what i've looked up, another thing the car will not pass 6000 rpms. the only code that popped up was the flow air ..thank you in advance

 

what was the code number

 

Every time I have seen someone throw a code for an intake it has been only 1 thing. There is a small inline check valve on one of the vacuum lines. Most likely it was reversed during the install. It's VERY easy to do!

Utah

 

Run a search for PO410 Check engine light. You will find your answers there