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Old 04-29-2013, 10:36 PM   #1
bootystank
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Join Date: Apr 2013
Chapter/Region: NESIC
Location: Mendon MA
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2011 WRX Hatch
Satin white pearl

Default Misfiring spells, & I want to tune

ok long story short my car was at the dealer 4 times for the same CEL p101 and p104 misfires. what they told me was cylinders 1 and 4 were misfiring. After the 4th reflash its now run 11,000 without an issue YAY. car has 27340 miles on. After i put the invidia cat back the car runs much better. My cousins neighbor who is a hardcore subie guy said that those codes were caused by the crappy stock tune leaning out and i shouldnt worry about Ringlands.

I am bord with the car and want to tune and DP it. Do you guys think i should get any tests done first?.


anyone else have this misfiring issue with a 2011 wrx
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Old 04-29-2013, 10:57 PM   #2
toph
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My friends brothers neighbors uncle who knows a guy with a shop 3 towns over said the same thing dude.

But seriously a catback won't make any of those issues 'better'. I'd make the dealership do a compression test for free. The car shouldn't be misfiring ever. And also don't listen to information like that. If you want real answers/results call a shop and have the car looked at and worked on.
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Old 04-29-2013, 11:18 PM   #3
bootystank
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yea what do you think i did? car has been to the dealer 4 times. did you miss the dealer reflash part? HAHA. I went to 4 different dealers because of the circumstances at the time. Non of them would listen and do a compression test.

and I quote 2 of the service managers. " Im not just gonna throw parts and tests at your car, I have a flat rate tech on your car and im loosing my shirt". We dont do customer requested tests, cause thats SOA protocall. If SOA didnt say todo it we dont do it."

Yea ive had it literally up to here with SOA customer service and warranty issues. Almost makes me want to go back VW or BMW
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Old 04-29-2013, 11:48 PM   #4
toph
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Uhhh don't take no for an answer? Call Subaru of America? Pay to have it done elsewhere and bring them the results? Do a compression test yourself?

You obviously know that everyone is going to say to get a compression test before modding, not sure what you're looking for exactly?
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Old 04-30-2013, 09:57 AM   #5
bootystank
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SOA answer to my problem was a 7tr 100000 mi extended comprehensive limited warranty, Big F%^&in deal on their part.

what Im looking for is other people who have had the same issues with their new wrx's
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Old 04-30-2013, 10:05 AM   #6
aod12
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Quote:
Originally Posted by bootystank View Post
SOA answer to my problem was a 7tr 100000 mi extended comprehensive limited warranty, Big F%^&in deal on their part.

what Im looking for is other people who have had the same issues with their new wrx's
If by "reflash" you mean just disconnecting and reconnecting the battery you've done nothing but lose the code instead of fixing it. Instead of going to four different dealers with the same first step, you should've stuck with the same dealer and emphasized that the problem keeps occurring which would prompt them to perform further tests. A misfire can lead to huge complications if unaddressed, you should go back to one of those dealerships if you have the same code popping up. Explain the situation of how you had it checked out and the codes came back so they can diagnose it further
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Old 04-30-2013, 01:13 PM   #7
Jack
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The next time you get the CEL, call the guys at Wicked Innovation and bring it down there. Let them diagnose what is actually wrong with the car. Bring it to them and say "I have a CEL. Please fix whatever is wrong with the car".

Subarus do tend to somewhat randomly throw misfire codes. I've seen it in several Subarus I've owned and my wife has owned. Sometimes it means the cats are clogged. Sometimes it means you need spark plugs. Sometimes you don't know what the hell it means and after clearing it, you don't get another for a year. If nothing else, drive over to Auto Zone and have them pull the code for free. You at least then know what the code is and can tell us.

Once the code is set, it'll stay there for a while. So one occurance or a mis signal to the ECU can get those christmas tree lights blinking at you for a while.

If you want to do something and the plugs have not been changed in a while, then go ahead and change them. They are NOT easy in a turbo Subaru. Takes me 4 solid hours. Although next time, I'll unbolt the motor mounts and lift the engine.
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Old 04-30-2013, 01:54 PM   #8
bootystank
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Quote:
Originally Posted by aod12 View Post
If by "reflash" you mean just disconnecting and reconnecting the battery you've done nothing but lose the code instead of fixing it. Instead of going to four different dealers with the same first step, you should've stuck with the same dealer and emphasized that the problem keeps occurring which would prompt them to perform further tests. A misfire can lead to huge complications if unaddressed, you should go back to one of those dealerships if you have the same code popping up. Explain the situation of how you had it checked out and the codes came back so they can diagnose it further
By re-flash i mean what ever they did at the dealer. I have the print outs of the codes. P101 & P104. And what prompted me to goto different dealers is its really hard to get to your original dealer when your 1200 miles away with your car for work. Trust me SOA knows who I am and my issues.

One dealership had my car for a week did nothing but send a tech with a laptop to drive around town and burn my fuel. they didnt even comp me a gas tank ot offer a rental. When I asked for the data logs they told me that "it was Property of SOA and how do they know Im not some one who just wants info". Direct quote for the service manager.

is It because im younger that there not taking my various complaints and requests seriously?.
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Old 04-30-2013, 02:02 PM   #9
bootystank
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also p0301 and p0304 codes too
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Old 04-30-2013, 02:36 PM   #10
iamrazor
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P0301 misfire cylinder 1
P0304 misfire cylinder 4

quick searching and i found this from nasioc.com Hopefully it helps shed some light on the issue for you.:

Causes of misfire codes are as follows.
1-bad spark plug, coil, or coil boot (carbon tracking around outside of spark plug, you can see this on the out side of the plug, replace the plug and coil boot if any tacking at all) also check that you have power to the coil, and that the ECU is grounding it.
2-vacuum leak (look for any hoses or possible problems on the intake runner to the cyl. that is misfiring)
3-injector (check that the injector is firing, you can use a stethoscope, if it is not clicking, you will need to check that you have power to the injector and that the ECU is grounding it)
4-compression (perform a compression test on both cyls. on the side that has the misfire, if both are around the same, do a running compression test, remove the check valve from the compression gauge and install it and start the engine, you need to do it on another cyl. to compare readings if low you may have a sticking valve, broken valve spring, or such. I have started doing this test on most misfire problems) we don't even use a vacuum gauge anymore.

5- last is when it starts to get hard, I would recommend taking it to a pro at this point. we start looking at O2 readings, fuel trims and the like. flow testing injectors, and possible head gasket issues. carbon on the intake valves (although we have not seen this to be a issue with subaru)
I am sure I have missed a few things, but this is the way we go about troubleshooting misfires.
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Old 04-30-2013, 02:42 PM   #11
bootystank
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When they did the week long road test, i asked nicely for all the logs that they had, valve timing fuel trim injector timing etc all that happy goodness.

Im planning on getting a compression test done when im out of school
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Old 04-30-2013, 02:42 PM   #12
bootystank
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thanks for that info!
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Old 05-01-2013, 04:41 PM   #13
BrenTuning
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is your neighbor xrocket21? i think he told me about your woes.
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