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Major Codes!!!!
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02-22-2017, 08:38 PM | #1 |
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Major Codes!!!!
Driving home from work this afternoon the car felt off. I have been getting this odd "feedback" from my MT at high rpm's. Kind of like a dull vibration.
Anyways, on the way home, my car went into limp mode, code city.... Intermittently, I have had the following two codes over the past few weeks: 2CF4 - Oxygen sensor before catalytic converter, dynamics:Slow Response 2D2F - Oxygen sensors before catalytic converter:Multiple fault Both are O2 related codes. I pulled an initial log this morning for an initial map for a custom tune that Ken is doing for me and this is what it looked like.... http://www.datazap.me/u/diggler70/lo...=0&data=4-5-15 Then this afternoon... 2EE0 - Combustion misfiring, several cylinders:Fuel injection deactivation 2EE2 - Combustion misfiring, several cylinders:damaging exhaust gas after start sequence 2EF4 - Combustion misfiring, cylinder 6:Fuel injection deactivation 2EF6 - Combustion misfiring, cylinder 6 2EFE - Misfire, several cylinders 2F04 - Misfire, cylinder 6 Reduced power, rough idle and chugging pulse from the engine. Could this be caused by a faulty O2 sensor? I had one of them replaced a couple of months ago. I think that there are two in my car if I understand correctly. Thanks,
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2016 340Xi M-Sport Sedan | BMW M Performance Exhaust l APEX SM-10 Wheels
Last edited by D's Bimmer; 02-22-2017 at 10:01 PM.. |
02-23-2017, 08:01 AM | #3 | |
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Did these codes appear during a WOT pull or were they during normal driving? These cars will deactivate the injectors on a cylinder when repeated misfires occur until the car is turned off and turned back on. Answer the above questions and we can go from there. |
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02-23-2017, 08:12 AM | #4 | |
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These codes initially appeared on a WOT. They still appear and the car still runs rough and half engine light. Even after repeated restarts and sitting over night. |
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02-23-2017, 08:23 AM | #5 | |
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02-23-2017, 08:26 AM | #6 |
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I am at the shop with it now hoping to find out more. Will log as soon as I can but I definitely can't WOT. I went back to the Stock O Map last night as well. Problem still persists.
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02-23-2017, 11:40 AM | #8 |
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It looks like the brand new Bosch spark plug in cylinder 6 had an issue. The insulation sleeve inside the plug became dislodged and would completely cover the tip. We swapped cylinder 1 and 6 and the misfire issue followed it. Just gonna replace the one new plug for now and see if that fixes everything.
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10-12-2021, 07:45 PM | #10 | |
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11-12-2021, 06:59 AM | #11 | ||
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11-13-2021, 09:13 PM | #12 |
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You don't mention miles, but 'fuel injectors' on a 2016 seems suspect given 'misfires'.
What about coils, wires, etc and all other ignition related components? Stick with the stock tune until you get it figured out... |
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03-07-2024, 04:31 AM | #13 |
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I know I am dragging up an old thread, but my car has been running noticeably poorly over the past couple of days and I too have received errors 2CF4 and shadow code 2D2F.
Luckily, my car is going into the garage this weekend to replace the high pressure fuel sensor and a couple of gaskets around the turbo where I have air leaks, among other works. I have ordered a replacement lambda sensor 11787596924 (Bosch 0258027019) in case this is needed. I'll report back - hopefully this doesn't turn into needing to replace injectors! /edit/ annoyingly the replacement lambda sensor I ordered with overnight delivery hasn't arrived! /edit/ Last edited by wrevilo; 03-08-2024 at 08:14 AM.. |
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04-04-2024, 05:05 PM | #14 | |
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Same issue here dude. Is it fixed now? |
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04-05-2024, 05:46 AM | #15 |
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04-26-2024, 02:21 PM | #16 | |
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Drives: 335xi M Sport e92
Join Date: Nov 2022
Location: Waterford, MI
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Do you have any updates? I replaced my upstream O2 sensor about a year ago with BMW OEM sensor but suddenly started getting the exact same codes. Car drives just fine though. 2011 e92 with 130k miles. |
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04-29-2024, 03:33 AM | #17 | |
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Other than the Valvetronic issue the car was looking decent on logs so I can't really offer anything further at this point. I will update further once I have my car back and it's in regular use. |
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