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      09-15-2018, 09:35 AM   #1
Pagman22
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Hurricane help

In my haste of getting ready for our potential hurricane, I put 5 gallons of diesel from one of my storage tanks in and now coincidentally I am getting the dreaded engine malfunction/loss of power icon. When I run the codes, I am getting 48DC (boost pressure sensor),4B82(EGR), 4862(MAF), 4C83(Exhaust pressure upstream), 4507(EGR), and 3F25 (lower charge air hose). I have to believe this fuel is causing the issue as I just ran it up to Columbia and back without issue doing 80+ the whole way. After this started, I treated the tank with some of the diesel Kleen produts: the biocide, the diesel clear, and the one with the cetane booster. It seems to be idling fine and sounds totally normal but really hesitates on acceleration before going into limp mode. Thoughts??
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      09-15-2018, 12:06 PM   #2
nastyx5m
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you put diesel fuel in your x5m? did I read that correctly?
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      09-15-2018, 01:36 PM   #3
Pagman22
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No sir! I'm feeling stupid enough as it is having put in questionable fuel in my 35d. Maybe I need to clean the sensors and hope for the best? Maybe a fuel filter change is in order also? I just really hate throwing parts at it if someone else has any experience.
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      09-15-2018, 01:58 PM   #4
cd85233
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Oh dear.
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      09-15-2018, 05:18 PM   #5
DieselDemonDM
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Quote:
Originally Posted by Pagman22 View Post
In my haste of getting ready for our potential hurricane, I put 5 gallons of diesel from one of my storage tanks in and now coincidentally I am getting the dreaded engine malfunction/loss of power icon. When I run the codes, I am getting 48DC (boost pressure sensor),4B82(EGR), 4862(MAF), 4C83(Exhaust pressure upstream), 4507(EGR), and 3F25 (lower charge air hose). I have to believe this fuel is causing the issue as I just ran it up to Columbia and back without issue doing 80+ the whole way. After this started, I treated the tank with some of the diesel Kleen produts: the biocide, the diesel clear, and the one with the cetane booster. It seems to be idling fine and sounds totally normal but really hesitates on acceleration before going into limp mode. Thoughts??
You may want to post this at the M57 thread for E90s.. I think I've seen a recent issue about somebody filling up their tank with contaminated diesel and having similar problems..
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      09-17-2018, 02:18 PM   #6
Gary214
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Try putting couple of cans of Seafoam.

I often put it every few months to clean out the fuel system. Car runs like a dream .
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      09-18-2018, 07:43 PM   #7
Pagman22
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OK, I've got resolution on this. I took my baby to the doctor(indy repair) and the readout recommended first replacing the turbo pressure sensor. In addition, the MAP sensor was replaced and voila..... she's purring again!!! Full power. So after all that worry, not a fuel issue. Indy repair shop is Exclusively Bimmers in Mount Pleasant, SC. Job well done.
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