I recently put an intake on my 01 s40. If I give it a decent amount of gas the car stutters and the DSA light and check engine light comes on. if i turn the car off and back on the dsa light goes off but the check engine light stays for about 5 mins. If I floor it the RPM's drop down to about 800 and back up, sometimes losing ALL accelertion. I'm willing to go back to the stock intake but this is annoying me!