Change the MAF and it should fix the issue. You can try cleaning it but for me cleaning it did nothing. From what I have read (which I did a lot of) cleaning it never really works. Just get a new one and you will be good.
i had the 1130 code all through winter. never changed a thing and as soon as it warmed up, I haven't had the code since. may not help you at all, but something to think about i suppose...