Mass Air Flow Sensor Problem - I think.
 

I have a 2001 Seville SLS. Thinks have been going great until a few weeks ago when the "Service Engine Light" came on. It runs real rough when warm at idle, but is basically a non issue when cruising. I pulled some codes on the instrument panel and the problem seems to be DDM B3832 Current. I've been told this is probably the Mass Air Flow Sensor, and that I might solve the problem by cleaning it. I know that it is located on the duct work between the air filter and the engine, but I see a couple devices there and am not sure which one is the one I'm looking for. Are there pictures or diagrahm's available to help me out? Also, does it sound like I'm on the right track? I'd appreciate any help I can get.
Thanks,
Poppy 101