Low RPM stalling/rough Idle and 5 codes.

So I've been fighting with my car (05 legacy gt) trying to find out what is going on with it. I'm getting these codes http://i.imgur.com/9SvYk.png?1. If i clear the codes then it will stall if I am slowing down and let the rpms fall too fast (have to heel-toe above 1k to keep it alive). Eventually after a couple hundred miles it will learn and do it only every once in a while. I gave up trying to find the problem on my own and took it to two shops now with no clue whats up. So far I have cleaned the MAF just in case it was something simple. Anyone have any ideas what I should look at fixing/replacing?

Sounds like intake leak somewhere.. Take a can of carb cleaner and spray it around the intake (especially TGV area) and see if idle changes.. Has anyone worked on it recently?

No work on it, just taken in for inspection

Definitely sounds like you have an intake leak somewhere. When you clear the codes you're resetting the fuel trims as well. That's probably why it stalls again after you clear them but after a while it learns to compensate for the lean condition and doesn't stall. Could also be a bad O2 sensor but it sounds like a leak after the MAF somewhere.

Anyway I can test it or is that something I would need to take for a smoke test or something?

vac leak, massive. or im gaskets are about shot and need replacing

Where do you live ?

05's are known to have bad o-rings at the intake manifold to TGV that leak when the temp's get in the 20F's.

You can also use a pint size paint can to plug the tube off the air filter box, pull the small hose on the BOV, and give it a quick shot of air from a air compressor, then put your thumb over the hose and listen for leaks.

It may also be a good idea to replace both old O2 sensors too. They don't last forever, and are about $90.00 each if you shop around. I got mine from the auto parts stores, call around prices are all over the place.

I live in AZ so temp like that isnt really an issue. thank you for the ideas guys I'll take a look this weekend!

probably a vac line blew off under boost....in/around the area of the inlet and manifold

I took the intercooler off last night to check the T-connection underneath and found a hose out of its connection. I won't be able to clear the codes until later on today but hopefully that was the problem

Zip tie every vacuum hose you can see. You'll be thankful you did.

don't sip tie, get those screw down hose clamps