12-26-2018, 07:47 PM | #1 |
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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? |
12-26-2018, 09:05 PM | #2 |
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2nd code looks familiar. Possibly O2 sensor or maybe MAF sensor? Not 100% sure sorry
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12-27-2018, 08:33 AM | #3 |
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P12ba is a bad fuel injector and s P1147 is bad 02 Sensor. They could be related
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12-27-2018, 11:38 AM | #4 |
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Any shakes or shuttering? Do some diagnostic pulls to see if anything happens.
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12-28-2018, 01:11 AM | #5 |
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12-28-2018, 08:57 AM | #7 |
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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.
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12-28-2018, 09:23 AM | #8 | |
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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.
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12-28-2018, 12:34 PM | #9 | ||
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12-28-2018, 04:41 PM | #10 |
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I'd say that is the best place to start.
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01-16-2019, 07:09 AM | #11 | |
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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 |
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01-16-2019, 07:57 AM | #12 |
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Clear codes and see if anything comes up.
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01-20-2019, 05:43 PM | #13 | |
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05-15-2019, 02:18 PM | #15 |
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05-30-2019, 04:23 AM | #16 |
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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
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06-05-2019, 11:05 PM | #17 | |
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