Running Rich?

[BOC Jason]

Ok. So i noticed the other day that when I switch gears sometimes blue smoke shoots out of my tailpipe..
I slowed down and went back up to 3rd and shifted again and it did it again so i glanced at my Air/Fuel gauge and when i'm at the top of my gear it says i'm running really rich. Usually it's just sitting down towards lean until I get on it (getting on a highway or passing an 18 wheeler)
Could that be causing the blue smoke?
and if it is from running to rich then should I adjust something or not?
(i just got my gs-t about 2 weeks ago so i'm trying to gain all the knowledge i can)
thanks guys.

 

[luv2rallye]

blue smoke = burning oil due to A) bad valve stem seals B) bad guides or C) cracked head gasket.

 

[absolute_DSM]

Exactly ^ Some type of oil consumption that happens at a vacuum, not under boost. Should rule out turbo seals.

 

[daarkness92]

+2 burning oil/ black smoke= rich

 

[BOC Jason]

Exactly ^ Some type of oil consumption that happens at a vacuum, not under boost. Should rule out turbo seals.

I had to have diagnostics run on my car when i first bought it b/c of my check engine light and the codes that were thrown were 170, 505, and 1105.

I'm pretty sure those were fuel trim (i honestly don't know what that is), o2 sensors, and a vacuum leak (not sure what that is).

Could that be connected to the blue smoke?