11-16-2020, 03:56 PM | #1 |
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Drivetrain error fault
Today while i was cruising i press the gas pedal hard and then a drivetrain error pumped up, the car cuts power , i stopped in the side of the road , the car was vibrating , i turn the car of and then turn it on again and the check engine fault with drivetrain was still on , i drove home slow , tried to scann the fault but it went away , the thing is that the car still cut power and wont accelerate hard full throttle above 4-5k rpm , but the fault is gone
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11-16-2020, 04:35 PM | #2 |
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How many miles on the plugs and coils? Probably bad plugs and or coils.
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11-16-2020, 04:36 PM | #3 |
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Also, do you have a piggyback boost controller or tune?
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11-16-2020, 09:50 PM | #4 | |
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the coils i did not change . When i drive normal cruising the car is fine , when i pull hard and pass 4-5k rpm the car lose and cut power . Do you think its a coil problem ? |
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11-17-2020, 06:54 AM | #6 | |
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Also, check to see if you are getting any pirated air post MAF sensor. If you have had the air intake off/open and didn't close it up tight it could be unmetered air getting in.
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11-17-2020, 07:54 AM | #7 |
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My downpipe are stock , i have M performance exhuast only , and yes fault came on after i swap my H&N drop air filters to the stock oem airfilters , Maybe the charge pipe clamps are leaking and need to be replaced , do you know what size are they ? maybe i replace them for stronger after market ones !!!!
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11-17-2020, 08:01 AM | #8 | |
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11-17-2020, 08:02 AM | #9 |
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Did you remove the charcoal filters when you had the K7N filters in?
I am sure your charge pipes are fine; I was referring to the air intake tubing coming off the filter box. make sure the lip of the tub didn't get pinched or rolled and double check all the torx bits around the airbox.
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11-17-2020, 08:28 AM | #10 |
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Item number 7 in the diagram is the MAF. Someone smarter than me is more than welcome to add on to this but the way I understand it is the MAF provides a voltage to ecu to indicate how much air is coming in, further down in the manifold is a MAP, manifold absolute pressure, sensor that is providing a reading to true up what the MAF sent if there is a difference the ecu will basically withhold fuel from that bank.
The other screenshot shows the MAP sensors as part number 10.
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11-17-2020, 01:04 PM | #11 |
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I did not have a charocoal filters since my car is a europe spec , i checked the MAFs for oil they felt clean but i will double check them again together with the airbox torx .
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11-17-2020, 01:11 PM | #12 | |
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11-17-2020, 04:15 PM | #13 |
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The universe has forced me to learn
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11-17-2020, 04:21 PM | #14 | |
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Did you change the gap on the plugs when you replaced them?
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11-17-2020, 06:32 PM | #15 |
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Just like Tincansailer said , I never experienced it yet , but I have read several posts over the years were guys are getting a drivetrain malfunction they change there plugs and coils and this fixed the problem .
You just changed your plugs a month ago , Maybe you have a faulty plug , I would change the coil packs and inspect or change your plugs again just to rule that out |
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11-18-2020, 04:16 AM | #16 | |
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11-18-2020, 09:37 AM | #17 |
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Probably a coil or possibly a fouled plug. If you dig into the replacing the coils check the plug gap while you are there. If you plan on running a tune it might be worth adjusting the gap but talk to your tuner to see what they say about the plug gap. You are likely going to need to data log while driving to get a root cause.
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11-18-2020, 10:08 PM | #18 | |
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11-19-2020, 06:50 AM | #19 | |
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Is youre car tuned ? And by the way in my hidden menu show dtc code : E11465 E11498 E1149C E1149D E12C1F Last edited by aann; 11-19-2020 at 09:34 AM.. |
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11-19-2020, 10:16 AM | #20 |
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You'll likely need ISTA software to properly sort the meaning behind these codes but you can try this website, http://bmwfault.codes/.
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11-19-2020, 12:19 PM | #21 | |
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11-19-2020, 05:51 PM | #22 |
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Yeah, I'd change the coils and take a look at the gap and condition of the plugs while you are in there. Maybe even the o2 sensors or at a minimum the post cat sensors since the pre-cats are easy to reach.
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