My car is intermittently blowing a big cloud of blue-ish smoke from the exhaust. It will bog down a little and poof, instant smoke screen. Then it stops in a mile or two. Speed doesn't seem to matter. Was told it had something to do with "pcv" and "egr". I know it is sucking oil and dumping it into the air intake via a hose from the driver'side side valve cover. Check engine light is on but I haven't gotten the codes read yet.

I need someone to explain what/why is happening and hopefully how to fix it in idiots terms....I am not mechanical .