08-08-2021, 07:05 AM | #1 |
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After tuning my car to BM3 stage 1, and making a couple of hard pulls, I got the following:
- Drivetrain malfunction: Drive moderately. Maximum drivetrain output not available. After running the diagnostic, I got the following from BM3: - 140010 misfires, More cylinders: recognized. - 140610 misfiring, Cylinder 6: recognized. - 140001 misfires, more cylinders: injection switch off. - 140601 misfires, cylinder 6: injection switch off. I got my spark plugs changed at around 27,000 miles (under maintenance plan), I am not at 37,000 miles. Do I need to change my spark plugs or am I looking at a different issue? Thanks in advance!
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08-08-2021, 08:20 AM | #2 |
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What exactly happened when the errors popped up, and what did you hear/feel?
One of your spark plugs may be unhappy but I'm not sure. Do you have a data log of what happened? Does the car run fine at idle?
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08-08-2021, 08:28 AM | #3 | |
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Im not too familiar with data logs.
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08-08-2021, 08:48 AM | #4 | ||
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08-08-2021, 09:49 AM | #5 |
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Same thing happened to me I have a 2015 m4 I hit 174 mph. Catless downpipes and jb4 tune map 2. It was my injectors and spark plugs. I got them changed out and the car were is running even better.
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08-08-2021, 09:55 AM | #7 |
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Yup! Same codes, except for the downpipes…. Im thinking same thing, change out the spark plugs…. Maybe a good time to upgrade to NGK 97506??
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08-08-2021, 10:01 AM | #9 |
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Do you have a part number? And did you only do injector #6?
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08-08-2021, 11:31 AM | #13 |
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Injector job is more involved, but it IS right there as you are doing plugs. It's a couple hundred for an injector set so buy from FCP Euro. You need the special tool to install them, and a very fine torque wrench.
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08-08-2021, 11:48 AM | #14 |
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Cyl 6 usually runs the hottest so I would change out the coil and replace all spark plugs with NGK 97506 gapped at .022
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09-06-2021, 05:57 PM | #15 |
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Hi, I have the exact same issue and plan on taking it to BMW next week. Can I ask if you figured out what the issue was? I’m getting the same cylinder 6 combustion misfire.
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09-06-2021, 11:21 PM | #16 |
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Replace spark plugs and/or coil packs and that should do it.
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09-07-2021, 05:51 AM | #17 |
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I bought the one coil (to replace cylinder #6) and im also replacing all the spark plugs with NGKs, but I haven't had the time to replace them yet….
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09-22-2021, 09:15 AM | #18 |
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I just finished replacing the coil on cylinder #6 and also upgraded all the spark plugs to NGKs (gapped at .23)…. Cylinder #6 was indeed the problem, the coil was not pushed in all the way, somehow it back itself out and when I removed the coil, there was white powder on the plug and coil looked burned. After the replacement of the coil and upgrade of the spark plugs, the initial codes cleared. I am happy the initial issue was resolved but now im getting a new code I didnt have before, 140011. I wonder if this has anything to do with the NGKs? Or the gap? Any advise is highly appreciated…
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09-22-2021, 10:34 AM | #19 |
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140011 is for Fuel Injection deactivation. It's related to 140601 and 140010.
Faulty spark plug or coilpack very seldom triggers a fuel injection deactivation, if ever. It's almost always a faulty injector that causes this condition. Premature injector failure on Cyl 6 is fairly common on the S55. |
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09-22-2021, 02:21 PM | #20 | |
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09-23-2021, 03:56 PM | #21 |
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Wow that thing is cooked. Never seen a coil get toasty like that.
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