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Cylinder 4,5,6 misfire on e60. ECU?

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Old Nov 11, 2020 | 05:21 AM
  #1  
Heyobie's Avatar
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From: Phoenix, Md
My Ride: 535i 2008
Model Year: 2008
Default Cylinder 4,5,6 misfire on e60. ECU?

My 2008 535i got really mad but was able to limp to my mechanic. Misfire on 4,5, 6. Mechanic swapped ignition coils from 1,2,3 with 4,5,6. Still misfired 4,5,6. Mechanic says not getting fuel.
A guy who repairs BMW computers says it is the processor inside the ecu and can repair for 350.
Looking for any comments.
Thanks in advance
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Old Nov 11, 2020 | 05:39 AM
  #2  
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From: Ft Lauderdale
My Ride: broken e60 with some wheels
Engine: n54
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could be. take out the DME and test the MOSFETS. was my issue. bought the mosfets online for like 10 bucks, got a local electrician to fix it for 50 bucks.
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Old Nov 11, 2020 | 05:47 AM
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Can I test the MOSFETS myself with a meter?


Last edited by Heyobie; Nov 11, 2020 at 05:52 AM.
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Old Nov 11, 2020 | 07:21 AM
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yes you can.


for what its worth, when the electrician tested my DME, they tested good. as well as when i tested before i brought it in.

its an easy job for anybody that knows how to microsolder so i had him do it anyway. Ive read of others with the same results as well. Test good but worked after replacement.

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