2004 545i Random Misfires
02-23-2016, 03:36 PM
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My Ride: 2004 BMW 545i
2004 545i Random Misfires
Anyone ever have random misfires on a 545i?? they jump around also its rarely the same cylinder... sometimes it does it and sometimes it runs perfect.... has new plugs and new coils...
02-23-2016, 04:28 PM
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Chasing a fix but seems rather common especially in colder weather when starting up, which is my issue.
One possible fix I will do soon that I read about on an E53 forum is to replace my injector 'O' rings as they maybe dryed out in the 12 yrs....
4.8 Misfire Detected Checksum Failure - Xoutpost.com
Have been
Chasing a fix but seems rather common especially in colder weather when starting up, which is my issue.
One possible fix I will do soon that I read about on an E53 forum is to replace my injector 'O' rings as they maybe dryed out in the 12 yrs....
4.8 Misfire Detected Checksum Failure - Xoutpost.com
03-08-2016, 11:53 AM
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My Ride: M5 SMG
Model Year: 2006
Since you changed the coils and plugs, it just might be the stock tune. Mine was funky until I did an Active Autowerkes tune. It really helped, and the car felt faster.
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