Refer to this thread:
http://www.aveoforum.com/forum/f108/...ormance-13668/
Apparently this is a camshaft solenoid that contains internal filters. It is easy to access. I tried to remove it, but it wouldn't budge. Rather than risk damaging it, I left it alone.
It still sets a code sporadically, but performance is not affected. I told my wife, "as long as it still runs with no problem, to hell with it".![]()