Lately, I have noticed that my engine has hesitated during acceleration and sometimes just cruising. It doesn't happen often, just about once every driving session now, and only when I am only about a mile into the drive. On top of that, my check engine light turned on Sunday. I ran the code and it was P0171 - Too lean. I did some checking online and found that there can be lots of things that can cause that code but most common was an issue with the MAF. I have a Corksport SRI on there but this is the first time I have had any issues that might be related to it. A guy in NAPA said that it might have just been the weather that caused the P0171 code, but that seemed strange to me. The check engine light did turn off today. Just to be clear, the hesitation started a couple weeks ago and the check engine light just turned on yesterday. Could they be related? Have any of you experienced anything like this? Thanks!