we're new to large bank cra reporting and we don't do many business loans at all

however, when looking for errors on my cra lar, there are two loans we did, one fore 2 million and another for 1.6 million

are these too large to be reported as small business loans?

Yes Small Business loans are reported at $1 Million or Less

While you may not do many, it's obvious you have a disconnect on what's reportable. As Don pointed out, those two are not reportable, but how many others did you report that shouldn't be reported, and how many did you miss? There is more to it than just the dollar amount.

I'd spend some time reading:

http://www.ffiec.gov/cra/guide.htm

Not very many does not mean you get to be "not very accurate".