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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > NA Engine (non-turbo) / Drivetrain / Exhaust Modifications > 2011 N52n No start, HELP



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      11-28-2012, 01:43 PM   #1
wboro4
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2011 N52n No start, HELP

Here is the story, i have a 2011 328xi n52 that was involved in a front end crash and now will not start. Everything powers up, it just cranks and cranks.. I noticed there is no fuel coming into the fuel rail but i can hear the pump prime in the back. I can get it to start with starting fluid but immediatly conks out since lack of fuel. Any thoughts or ideas? I even pulled the valve cover and made sure everything was in time with timing tools. Thank you for any help you guys can give me.
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      11-30-2012, 03:06 AM   #2
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Fuel cutoff from the collision? Maybe a crimp in the line? It could be many things based on extent of damage, or something so simple we will never guess!
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      12-01-2012, 09:55 PM   #3
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Is there such a thing as a crash computer that would have to be unlocked? Somewhat like a safety feature, I.e. preventing damage to the engine/car? Fuel lines look ok, I don't see any breaks or crimps. Could it be possible even though I hear the pump maybe the reg is bad in it and is not producing enough pressure to push it to the rail?
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      12-03-2012, 09:12 AM   #4
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Disconnect the IBS (Intelligent Battery Sensor) and try to start the car. The blue connector on the right

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      12-05-2012, 04:07 PM   #5
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Originally Posted by xxxjecxxx View Post
Disconnect the IBS (Intelligent Battery Sensor) and try to start the car. The blue connector on the right

did this work? Just curious.
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      12-05-2012, 05:13 PM   #6
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That did not work, still pulling my hair out.
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      12-07-2012, 10:35 AM   #7
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At least get someone with INPA on a laptop to read the codes, if not you are going to go down a long guessing road.
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      12-07-2012, 11:54 AM   #8
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have it towed to the dealer???
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      12-07-2012, 01:19 PM   #9
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Check your fuses sir. I've had many 2010+ n52s pop the fuses in a front end impact. Not sure which ones they were but I've seen it. Also check
Your vanos solenoid plugs for damage.
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      12-08-2012, 07:00 PM   #10
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Fuses all seem to be good in the glove box, solenoid plugs also seem to be ok. I will have to try and find someone with some diagnostic software for BMW that can run live data.
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      12-08-2012, 07:43 PM   #11
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How about an inertia switch? Cuts fuel in the event of an accident.
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      12-09-2012, 09:03 AM   #12
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Can anyone confirm that the e90 has a fuel cutoff and if so where it is located? I can't seem to come up with anything in the search.
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      02-09-2013, 07:28 PM   #13
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so, fixed?
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