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04-06-2015, 10:50 PM | #1 |
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Service engine soon.
help this weekend I was driving home from North carolina to Maryland for the weekend to see family. I got the service engine light around 200 miles into my trip. Being annoyed of the light I got off the highway to a gas station to see what was up. My RPMs seem as the like to hang when i rev then finally drop. At idle it would fluctuate from 500 to 800 then come back to a normal idle after the car settled. Car only has 37k miles on it. I don't think it's coils or plugs maybe a O2 sensor? The light went away after I parked the car on Thursday night and hasn't came on since. Today I felt as the car wanted to bring the light back on again going home today, it was showing the symptoms from the last time the light came on but I stopped to let the car cool off and get gas. I can't read any codes since the light isn't on anymore. My n52 is a 2009.
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04-07-2015, 12:00 PM | #6 |
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What did you use to pull that code? If you get it hooked up to a proper diagnostic system it will give you much more detailed info as to what exact sensor is the issue, not just a generic P code.
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04-07-2015, 12:38 PM | #8 |
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04-07-2015, 05:06 PM | #9 |
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Here's a thread that involves the same code. In his case it was the Vanos seals:
http://www.bimmerfest.com/forums/sho...d.php?t=427473 I use Torque to read OBDII codes. You can do it while driving (if you have the OBD to Bluetooth plugged in). I also have an inexpensive reader.
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04-08-2015, 07:42 AM | #10 |
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The reason I'm saying use a shop with the fancy scanner is because I had similar symptoms as you and eventually got a similar code using Torque. I starting researching how to replace the cam position sensor because the P code was pushing me toward that being the issue. Using the Autologic scanner at my local indie shop they got a different type of code with detailed description saying it was the VANOS exhaust solenoid. Replaced that and it's been perfect ever since.
BMWs shouldn't be diagnosed with P codes. If you use the proper scan tool, there are more detailed codes that point to the exact problem. |
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