Hey guys, new here and new to Integras. Just got my first GSR 2 weeks ago and I took it in to get the smog done yesterday but it failed because it has "High HC at Idle." I dont know what that means and the mechanic really didnt explain it too well. I was wondering if anyone had any advice on how to lower that...what is "HC" btw. The max I could get was 100, and my car hit 159. Anyways, I wanted to know if there was anything I can do, or if taking it to a mechanic is the best choice.

Thanks in advance!
-Stone