My first post, just wanted to say I've been browsing the forums and this one is very informative. Sorry if this is a repeat post but I searched and couldn't find one with a similar problem. If there is please direct me to its location.
I recently purchased a 05 330ci zhp 6 speed with 80,000 miles about a month ago and love it. I have never been able to resist modding my vehicles but with this one I want to keep simple, so I installed an AEM CAI. After about four days with no problems I got a SES light so I ran codes (p0171 and p0174) lean bank one and two. I began instantly checking for intake leaks, cracked boots etc. Couldn't find any so I cleard codes with my actron and took for another drive after 30 miles SES light with same codes. I reinstalled the stock intake, cleared codes, and haven't had a SES in two days. Has anyone else had the same issue with the AEM or has any ideas? If it might make any difference the paperwork I recieved with the car indicated it was purchased from Germany and shipped into Fl. Is there any difference in the German spec vs. the U.S. that might cause this issue?