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E90 M3 (Sedan) | E92 M3 (Coupe) | E93 M3 (Convertible) (2008-2013) {Engine: S65 - Max Hp: 414 hp (420 hp Euro) at 8,300 rpm / 295 lb/ft at 3,900 rpm}


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Old Sat, May-20-2017, 11:37:28 PM   #1
mikusk
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Unhappy Need help with some error codes

Hey guys,

So I have a few codes poping up on me and even tho i have some idea what it is,I would still love me some help.
Car is 08 e92 with 65k miles


First issue is engine light.According to my research it probably is 02 sensor.Carly threw this code : 274A failure detection cyl.2
When i clear it,it stays away for a week or two and then it comes back on again randomly.No limp mode.

http://www.m3post.com/forums/showthread.php?t=859209 this thread describes similiar issue but there is no update on it.

When i took it to a shop (they have some advanced diagnostic tool) they also found these codes:
27B1
274A

2b43
2b44
2b45
2b46
2b47
2b48
2b49
2b4E

all refer to Misfire impairing exhaust emission at several cylinders pretty much besides the 27B1 & 274A.
They didn't really know what it is,they just told me to take it to a stealership which i wanna avoid since i had bad experience there.

Second issue is pretty much these 2 threads:
http://www.m3post.com/forums/showthr...ight=5df0+5df1
http://www.bimmerfest.com/forums/sho...d.php?t=756564

I get 5Df0 pump motor faulty and 5DF1 pump motor connector damaged codes. These are yellow ABS/DSC/Brake lights.They pop up randomly and also clears randomly after some driving or turning off/on the engine and driving couple miles. It started very mildly where i would get them every month or so but recently they started poping up like every other ride so it got worse over time.This is probably a failed ABS unit.

They checked it and did some work on it in the shop (I did not rly understand the mechanic but he said they cleaned some stuff and played around with it,aligned it or something).

So if this won't help and the codes come up on me again what should I do ? Do i just send the ABS unit for a repair ? Like a lot of guys facing this problem did ? (cost is around 250 for repair vs new unit around 3k afaik).

Any help will be greatly appreciated,sorry for the long read.
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Old Fri, May-26-2017, 01:46:11 AM   #2
mikusk
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Default Re: Need help with some error codes

still looking for help
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Old Fri, May-26-2017, 02:16:43 AM   #3
MarcoMedia
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Location: Madison

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Default Re: Need help with some error codes

Hey bud.
I have a 09 and had one of the codes on your list. I dont remember exactly which one, but I do remember the 02 sensor being a potential culprit. I ended up reading on another forum about how some of these codes can be tied to the Fuel Pressure Regulator. Its right up against the fire wall, and when it goes bad, the car thinks a bunch of unrelated issues are the cause. After replacing it the engine code went away, and its been driving ever since. Its a long shot, but it cost $120 and takes fifteen minutes.
Good luck
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Discussing Need help with some error codes in the E90 M3 (Sedan) | E92 M3 (Coupe) | E93 M3 (Convertible) (2008-2013) Forum - {Engine: S65 - Max Hp: 414 hp (420 hp Euro) at 8,300 rpm / 295 lb/ft at 3,900 rpm} at BMW M3 Forum.com (E30 M3 | E36 M3 | E46 M3 | E92 M3 | F80/X)