Anyone had P12BA and P1147

kuruca · 12-26-2018, 07:47 PM

My friend owns 2012 x3 28i with just about 100k on it, he has 4 codes saying 3 of the p12ba and 1 is p1147 with generic code reader
Anyone here had same codes?
Where should we start from?

BMWZ4 · 12-26-2018, 09:05 PM

Quote:

Originally Posted by kuruca

My friend owns 2012 x3 28i with just about 100k on it, he has 4 codes saying 3 of the p12ba and 1 is p1147 with generic code reader
Anyone here had same codes?
Where should we start from?

2nd code looks familiar. Possibly O2 sensor or maybe MAF sensor? Not 100% sure sorry

x3sm · 12-27-2018, 08:33 AM

P12ba is a bad fuel injector and s P1147 is bad 02 Sensor. They could be related

TheCoolX3 · 12-27-2018, 11:38 AM

Any shakes or shuttering? Do some diagnostic pulls to see if anything happens.

kuruca · 12-28-2018, 01:11 AM

Quote:

Originally Posted by TheCoolX3

Any shakes or shuttering? Do some diagnostic pulls to see if anything happens.

No shakes us shuttering drives great, deleted codes came back again

kuruca · 12-28-2018, 01:12 AM

Quote:

Originally Posted by x3sm

P12ba is a bad fuel injector and s P1147 is bad 02 Sensor. They could be related

Which 02 sensor?

x3sm · 12-28-2018, 08:57 AM

Quote:

Originally Posted by kuruca

Which 02 sensor?

What did you scan the vehicle with?

Looks like its showing for the rear O2 Sensor.. Probably your injector went bad and dumped fuel and cooked on the sensor. Hows your gas mileage? I would change the injector first and see what happens. Injector from Cylinder 4 in your case, but double check to be sure.

TheCoolX3 · 12-28-2018, 09:23 AM

Quote:

Originally Posted by x3sm

Quote:

Originally Posted by kuruca

Which 02 sensor?

What did you scan the vehicle with?

Looks like its showing for the rear O2 Sensor.. Probably your injector went bad and dumped fuel and cooked on the sensor. Hows your gas mileage? I would change the injector first and see what happens. Injector from Cylinder 4 in your case, but double check to be sure.

I'm willing to bet that is what happened!

Depending on how long it was or has been pouring fuel into the cylinder it may have clogged up you cat. I'd say look into fixing the injector. Then, drive it a bit and see if the o2 code goes away. If it persists, replace the sensor. Cat should eventually unclog itself.

kuruca · 12-28-2018, 12:34 PM

Quote:

Originally Posted by TheCoolX3

Quote:

Originally Posted by x3sm

Quote:

Originally Posted by kuruca

Which 02 sensor?

What did you scan the vehicle with?

Looks like its showing for the rear O2 Sensor.. Probably your injector went bad and dumped fuel and cooked on the sensor. Hows your gas mileage? I would change the injector first and see what happens. Injector from Cylinder 4 in your case, but double check to be sure.

I'm willing to bet that is what happened!

Depending on how long it was or has been pouring fuel into the cylinder it may have clogged up you cat. I'd say look into fixing the injector. Then, drive it a bit and see if the o2 code goes away. If it persists, replace the sensor. Cat should eventually unclog itself.

So its deffinately one of the injectors are bad correct?

TheCoolX3 · 12-28-2018, 04:41 PM

I'd say that is the best place to start.

Quote:

Originally Posted by kuruca

So its deffinately one of the injectors are bad correct?

kuruca · 01-16-2019, 07:09 AM

Quote:

Originally Posted by TheCoolX3

I'd say that is the best place to start.

Quote:

Originally Posted by kuruca

So its deffinately one of the injectors are bad correct?

Ohm tested injectirs they all seems to be good
They all reading 11.7ohms, smoke tested no leaks at all, car drves great but the codes are there, what i should check next?
Anyone else had this problem here

TheCoolX3 · 01-16-2019, 07:57 AM

Clear codes and see if anything comes up.

Quote:

Originally Posted by kuruca

Ohm tested injectirs they all seems to be good
They all reading 11.7ohms, smoke tested no leaks at all, car drves great but the codes are there, what i should check next?
Anyone else had this problem here

kuruca · 01-20-2019, 05:43 PM

Quote:

Originally Posted by TheCoolX3

Clear codes and see if anything comes up.

Quote:

Originally Posted by kuruca

Ohm tested injectirs they all seems to be good
They all reading 11.7ohms, smoke tested no leaks at all, car drves great but the codes are there, what i should check next?
Anyone else had this problem here

It end up being the map sensor on intake manifold if anybody faces with it thats to change thank you everyone for replies

jqw · 05-15-2019, 12:37 PM

So did you solve the problem, I have the same car and the same code, I changed all my fuel injectors but the code is still here.

jqw · 05-15-2019, 02:18 PM

Quote:

Originally Posted by kuruca

It end up being the map sensor on intake manifold if anybody faces with it thats to change thank you everyone for replies

Do you have the part NO.?

thatg · 05-30-2019, 04:23 AM

I believe he’s referring to this.

https://www.fcpeuro.com/products/bmw...waAsrEEALw_wcB

I just got my 35i x3 and the mpg reader is showing horrendous gas mileage. Im talking i can sit at a traffic light and have watched my mpg go from 11.7 to 11.4 in the minute and a half im sitting there after driving 40 miles on the highway

kuruca · 06-05-2019, 11:05 PM

Quote:

Originally Posted by thatg

I believe he's referring to this.

https://www.fcpeuro.com/products/bmw...waAsrEEALw_wcB

I just got my 35i x3 and the mpg reader is showing horrendous gas mileage. Im talking i can sit at a traffic light and have watched my mpg go from 11.7 to 11.4 in the minute and a half im sitting there after driving 40 miles on the highway

Yes that one

12-26-2018, 07:47 PM	#1
kuruca Captain 33 Rep 623 Posts Drives: 488 GTB, m4, Levante Join Date: Nov 2007 Location: CT iTrader: (1)	My friend owns 2012 x3 28i with just about 100k on it, he has 4 codes saying 3 of the p12ba and 1 is p1147 with generic code reader Anyone here had same codes? Where should we start from?
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12-27-2018, 08:33 AM	#3
x3sm Captain 282 Rep 744 Posts Drives: M3 E93 Porsche Join Date: May 2018 Location: Ashville iTrader: (0)	P12ba is a bad fuel injector and s P1147 is bad 02 Sensor. They could be related __________________ M3 E93 PORSCHE MACAN S: SOLD BMW X3 F25: SOLD AUDI S4: SOLD BMW E92 335: SOLD
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12-27-2018, 11:38 AM	#4
TheCoolX3 Lieutenant 174 Rep 540 Posts Drives: 2016 BMW X3 35i M-Sport Join Date: Feb 2018 Location: FL iTrader: (0) Garage List 2014 Porsche Cayenn ... [0.00] 2019 Tesla Model X [0.00] 2016 BMW X3 [0.00]	Any shakes or shuttering? Do some diagnostic pulls to see if anything happens. __________________ 2016 X3 35i \|M-Sport\|Megan Racing Coilovers\|FBO+\|BM3\|Jordan Tuned\|Valvetronic Designs\| 1998 750iL V12\|2017 440i\|2019 991.2 GT3RS Weissach\|2019 Model X\|...and some others Instagram @TheCoolX3
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05-15-2019, 12:37 PM	#14
jqw New Member 0 Rep 6 Posts Drives: X3 28i Join Date: Feb 2016 Location: Quebec iTrader: (0)	So did you solve the problem, I have the same car and the same code, I changed all my fuel injectors but the code is still here.
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05-30-2019, 04:23 AM	#16
thatg Major 99 Rep 1,168 Posts Drives: Silverstone E93 M3 Join Date: Jan 2008 Location: Los Angeles iTrader: (10)	I believe he’s referring to this. https://www.fcpeuro.com/products/bmw...waAsrEEALw_wcB I just got my 35i x3 and the mpg reader is showing horrendous gas mileage. Im talking i can sit at a traffic light and have watched my mpg go from 11.7 to 11.4 in the minute and a half im sitting there after driving 40 miles on the highway __________________ Check my for sale and wanted threads!!! If i didn't post sold then it's still available!! http://www.e90post.com/forums/search...&starteronly=1
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