33k and the trouble begins(Final update=Spoke too soon)
 

I've had my car for just over two years without a single running issue. Not even a noticeable idle fluctuation. Saturday morning heading to a golf course, CEL and SL lights came on. Of course my heart sank and I decided to drive 5 under the speed limit to the golf course. Being bothered by car perils, my golf game suffered until my mind became eased by a few beers. Came home, plugged in my scanner and found P0171, P117B and P219A codes. Great. Start poking around under the hood, looking for anything relevant to have been knocked loose. I'm completely stock aside from a cat-back exhaust, so mods aren't an issue. I'm taking my beloved to the dealer in the next couple days, depending on when my boss let's me have off. I apologize for the drawn out story, but not really. I've searched the forums and haven't seen much of a consensus of what typically causes issues like this. I'm more just putting forth a starting point for my issues in hopes that it may provide relevance to some poor sap in the future. Will update with any new information.

UPDATE 10/5/2015:I've had my car back for nearly a week now. As it turns out, my drivability issues resulted from the Direct Injection control module not communicating with the throttle position sensor properly. This, in turn, fouled the direct injectors causing them to not spray correctly. The dealership ended up replacing all four injectors and the control module. All in all, I'm happy now that I have my car back and I'm even happier to report that she's running like the day I bought her.

UDATE 11/3/2015: Yesterday I dropped my car back off at the dealer after CEL and skid light came back on. Ran the codes, They are as follows: P0301, P219A, P119E and P0171 is pending. I got a call from the new service manager and he informed me that they submitted the issue to TechStream. They responded and advised them not to touch the car any further and they were going to schedule an engineer to come out and look at the car and help to troubleshoot the cause of the problem. As it stands, all of the codes that I've seen in the past 2 months are as follows: P0171, P0301, P117B, P119E, P119F and P219A. I'm hoping for a thorough explanation and a timely repair.

All those code related to air fuel ratio could be heaps of things
intake or exhaust leak or dirty maf sensor or o2 sensor fault ect, rearly bad batch of fuel

even check battery volts dying batteries can cause weird issues

dealer will sort it thogh its under warantee


Subaru codes here
http://www.romraider.com/RomRaider/C...gineLightCodes

I appreciate the input, I've looked into most of those things. I'm limited on my diagnostic abilities and took it to my buddy's shop earlier in hopes to get a scanner on it to see what the sensors and whatnot were doing. As it turns out, they lost the keys for the scanner which has all of the Japanese manufacturers on them. Was hoping to narrow it down to a few possibilities. Battery tested out fine and system voltage is above 14.1V. I guess I'll just have to be patient until I get her to the dealership.

Maybe your car was just having a bad day ...... like your golf game ......:(

I'd suggest you check/clean the air filter; fill up with hi-test gas from a different station; erase the codes; have a short beer ...... then take it for a drive to see if the code(s) return.

If they return, have a couple more beers and let the dealership sort it out ... :)


humfrz

I've done all of that, including a multitude of beers, except replacing the gas. I freaked out Saturday when I was at half a tank, filled up from my usual gas station and didn't think that maybe running it down to 1/4 tank was going to make much of a difference. Currently back down to half a tank with no change. Going to be filling up in the next day or two. I drive a ton and I've got two more rounds of golf to play this week. More beers!:cheers:

So, did the codes come back after you erased them ..... ??


humfrz

They've come back every time since they've started. Air filter is brand new, oil has been changed 1500 miles early to eliminate other possible variables.

Hmmmm.......... I reckon it's time for a dealer visit.

Good luck!

humfrz

If you buy a cheap ELM327 blutooth obd adapter and have an andriod phone or tablet download the torque app or obd dash and you can monitor sensors read codes and clear codes the app and blutooth adapter will be less than $20

That's what I have and what I've been using to pull codes. Not really sure where sensors should be reading at what point, but at idle, it seems like engine load is ridiculously high.

Just how new is that filter? Did you maybe not seat it right and air is leaking around it?

Brand new Sunday. Removed the entire intake and reassembled to ensure everything was right. Besides, if it's before the MAF sensor, wouldn't it still register the volume?

Sounds like an issue with the MAF or O2 sensors. At least both of those are easy to replace. Good luck at the dealer!

Thanks. Seems like a toss up to me without knowing what output ranges are supposed to be for either. I just hope it's not something stupid I've over looked.

One thing to try... make sure torque is not running when you start the car. That will cause it to throw codes. But I think those codes are communication issues... not the ones you mentioned above. Good luck.

I normally only plug in the adapter when I intend to check things out and I have the car on and around operating temperature. The past few days have been the exception due to frustrations of trying to wrap my head around the problem.

You may have a vacuum leak if there was anything that came loose or wasn't re-installed correctly.

I've triple checked everything leading into the intake manifold at this point. I've spent quite a few years as a mechanic, so can we get off the "something installed incorrectly" theme? I'm not meaning to sound unappreciative of the advice, but I've stated a few times that I've ruled it out.

You shouldn't ask for advice from non-mechanics and figure it yourself.

First: There happen to be other very skilled and knowledgeable mechanics on here that may or may not have something to add.

Second: In my OP, I didn't state that I was looking for advice and was merely doing this as a public record for others that may have similar issues.

Third: Any helpful advice is appreciated, though I'm confident I'll get it sorted some way.

That all being said, I'm assuming you didn't read a majority of the thread and I'm sorry if you did and just didn't pick up on what's already been discussed.

I did read the entire thread. You never mentioned that you removed the intake entirely until a couple posts ago. Problems usually stem from the last thing was changed. P0171 usually pops up with a vacuum leak or exhaust leak. Sometimes putting ego aside on these forums helps.

Had it been that code alone, I would be more inclined to agree with that statement. As was stated earlier, car is nearly bone stock. Aside from oil, peeking at the air filter and rotating the tires, nothing has been changed in the past six months.

Long shot, maybe unplug the battery to let the car "reset" itself. Weird things with this car and brand new too.

Had it disconnected while I took apart the intake checking things.

Took some freeze frames at idle, I'll post them when I get home. Can't seem to post them properly from my phone.
[IMG][http://i46.photobucket.com/albums/f1...pswsvj337i.png/IMG][IMG]http://i46.photobucket.com/albums/f1...pse28in8cj.png[/IMG][IMG]http://i46.photobucket.com/albums/f1...pspdmsekmz.png[/IMG]

At idle engine load should be arround 0.3
afr generally arround 14.7 once warmed up at idle
ltft will vary a bit depending on intake air temps fuel ethhanol percent ect but should be less than 10% usually arround +\-5% in most cases ,if long termm fuel trim is high like 15 to 20% usually an indication something is wrong

short term fuel trim will vary widly with throttle application this is normal

commanded afr and afr should follow each other under load

see logging link below

had the same issue at 29k
 

Took it too dealer and they flashed the ecu with the latest revision.

How long ago was that, may I ask? Any issues at all since?

I wonder if you have a dead mouse in the air intake system. if you dont have time to go dealer, i think the warranty including free towing to dealership? if not, just use AAA membership to tow it.

Unless it got through the air filter without making a hole and up into the manifold, I'm pretty sure that's not the case.

no issues
 

It's been fine for two months since reflash .

Another code popped today, P119F.

Ecm issue? Air filter and fuses ok?

For code here:
http://mmc-autoelectric.org.ua/manua...0002600ENG.HTM

The more I'm looking into it, the more in inclined to believe it's an ecm issue pertaining to the DI system. It appears that they aren't getting fuel into the cylinders and the port injectors are compensating for them. The engine really starts to struggle around 2.7k rpm, theoretically when it's calling for primarily DI.

Also, I think that's the 3rd or 4th definition I've seen for that particular code haha

haha i'm curious now. What are other definitions? I'm going to my mechanic to take my friends truck for smog, i can ask him too. Tomorrow...that is.

This site has it referenced with a couple of other codes, P119E and P219A

http://ft86tech.com/error-codes/

P119E,P119F,P219A: BANK 1 AIR-FUEL RATIO IMBALANCE FOR PORT INJECTION

Just a quick update: Car has been at the dealership and they are waiting on SOA to get back to them about repairs I suppose. Kind of frustrating because the lady I talked to didn't seem to have a clue on much of anything. This is the very reason I was reluctant to resort to the dealership. Hopefully I'll hear something soon.

Update #2: As I hit the post button, the dealership called me. Strange. Turns out they're starting out with replacing the transmission under warranty(I guess there was an issue with that) and they'll see what they can do after that. Fingers crossed!

Another update. They're replacing a fuel injector. I'm guessing the direct injector on cylinder 1. Service manager at the dealership seems to not have a clue about anything and wasn't able to explain to me why they are replacing the transmission. Hoping to have the car back Monday.