I've exported this video I've been working on several times under different conditions, no effects, no transitions, no additional media, different formats between AVI, MPEG, H.264, I've uninstalled and re-installed premier, running as administrator. I have done everything in my known knowledge of troubleshooting to figure out why after exporting this video my audio sync is off by two seconds, nothing I've done has worked.
I'm matching the source as export other times I've not, again I've tried multiple combinations.
I'm running Adobe Premiere Pro CC 2014
Windows 7 - 64bit
AMD FX-8320 Eight-Core 3.5GHz
AMD Radeon R9 200
AVI is a wrapper, what is inside YOUR wrapper - Exactly what is INSIDE the video you are editing?
Codec & Format information, with 2 links inside for you to read http://forums.adobe.com/thread/1270588
Report back with the codec details of your file, use the programs below... A screen shot works well to SHOW people what you are doing
https://forums.adobe.com/thread/1070933 for screen shot instructions
Free programs to get file information for PC/Mac http://mediaarea.net/en/MediaInfo/Download
Does your video use a VARIABLE Frame Rate or a Constant Frame Rate?