P0171 Anyone get it on their b7 s4? Fixes?

[Chegoss]

First and foremost hey Audizine,
Just registered although I have been ghosting around Audizine for 3 years now looking at information on my then current a4.

Just recently came around a well priced used S4 and bought it.
After I got the car I got a MIL light after driving it maybe 20 miles.....

So, long story short I pretty much called the dealer, and told them about the issue (they are in Alabama and I am in Maryland.)
First I tried cleaning the MAF with CRC MAF cleaner and maybe 5 miles later the MIL would come back on. So I don't think its the MAF.
So I went to my dealership (a4 dealership) and I told them the issue. They pulled up misfire in cylinder 3 and 5 caused by bad coilpacks and plugs. So I got that done that day.
They also noticed that the airbox was not on correctly so they fixed this issue for half hour labor and cost of screws which wasn't much anyways.

Now I drove the car for maybe 150 miles or so and the MIL comes back on with the same P0171 code.
Now I'm leaning toward maybe vacuum leaks? I do hear a somewhat hissing noise with the hood up and listening but I'm not too sure. I'm not exactly a mechanic so I go by what I read most the time.
I read on some P0171 code posts that it could be a leak in the crank breather hose?
It's bank 1 so It's on passenger side but I just can't seem to pinpoint it.
I am going to the dealer tomorrow to have it checked as well since I went there to find the issue with the same code previously.

btw the P0171 Bank 1 too lean code came up 2 times. So is that saying there are 2 leaks somewhere?

Thanks in advance.
John

[dparm]

Take it back to the dealer. They didn't fix the problem **** you should not have to pay another diagnosis fee.

[Chegoss]

Thanks Dparm for a super fast reply,
Yeah I am going there tomorrow morning to get it looked at.
I just don't want to go in with at least some idea of what's going on.
Do I pretty much have most the issues covered? Or is there possibly something else I haven't looked at?

And also the post question if anyone else has dealt with this problem on the B7 S4's yet?

[Chegoss]

So back from the dealer yesterday they said the p0171 codes were generic and they found a
p0441 Evap Purge Valve (Sporadic)
and P1128 - Fuel Trim Bank 1 (Mult) system to lean.

They say its the maf, fuel filter and the purge valve anyone ever get these codes?

[dparm]

Emissions components are covered by a mandatory 8/80k warranty.

[Chegoss]

Emissions components are covered by a mandatory 8/80k warranty.

Bleh the car has 88k miles -_-

Another thing that seems odd. The car seems to either be leaking oil badly or something because I've seen the Min oil lamp light up 3 times in about 800 miles?
I know that's not normal at all. I did feel the side of the engine and it does seem like its oil leaking. Valve cover gasket?
I might as well start studying cars I'm learning so much from this.

Also I asked for a quote for replacing and they gave me $1300 !? This seems steep for 80 dollars in parts and I'm guessing maybe an hour of their time?

[dparm]

Yes, leaking gasket probably. You can replace them yourself in an hour or two.