Engine Code - p1296

hello everyone, i have a 2001 audi a6 2.7t, and the check engine light came on. I recently hooked up the computer and it read P1296, fuel air metering. I thought this was kind of weird considering when I looked up what P1296, it said it was cooling system malfunction. I dont know if the problem is fuel air metering or cooling system malfunction, the car seems to be running fine but I need to settle this. I havent had any problems earlier so I'm not too familiar with what to fix or replace, any help would be great. thanks