10-14-2021, 04:43 PM | #3 |
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It should be like "Vroom"…
"Chugga chugga" ain't good.
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10-14-2021, 07:35 PM | #4 |
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Did it shot flames?
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10-14-2021, 07:36 PM | #5 |
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Heres the vid https://youtube.com/shorts/EMkRERrZrRU?feature=share
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10-14-2021, 07:53 PM | #7 | |
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2023 M2. ZB. Manual.
2024 m235i |
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10-14-2021, 07:55 PM | #8 | ||
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10-14-2021, 07:57 PM | #9 |
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10-14-2021, 08:13 PM | #10 | |
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And please share this car's backstory. |
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10-15-2021, 09:15 AM | #14 |
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Sounds ugly, like a cylinder not firing or a rod knock.
Pull plugs, if all look dry and similar then top end is fairly good. Borescope down plug holes looking for valve scrapes on pistons. Compression test all cylinders. Next remove oil pan and check bearings. If these then do all bearings and maybe that one rod, and consider an engine kit if it's all taken apart anyway… No need to touch the block bores, our twinwire coated cylinders are ultra hard.
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10-15-2021, 11:29 AM | #15 |
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10-15-2021, 11:36 AM | #16 |
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New pop and bang tune lol. Are you tuned/modded and any codes?
Bummer man, sounds like a bad rod knock or some serious cylinder cut misfire. Please follow Jimmy's recommendation and report back. I'm interested in hearing the results. On another note, did you guys see the Robert Mitchell video (ring taxi M3) below? https://www.youtube.com/watch?v=yjUBK4FHEPo
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10-15-2021, 02:38 PM | #17 | |
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10-15-2021, 02:39 PM | #18 | |
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10-16-2021, 10:06 PM | #19 | |
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18 errors 121001: Boost pressure sensor, electrical: short circuit to positive CD8F01: LIN, communication (intelligent battery sensor): missing 1 120408: Boost pressure control: shutdown as a follow-up reaction 150102: Ignition, cylinder 1: burning time too short 102A01: Air mass meter, signal: electrical fault 102A11: Air mass meter 2, signal: electrical fault 140010: Misfire, multiple cylinders: detected 140110: Misfire, cylinder 1: detected 140001: Misfiring, multiple cylinders: Injection is switched off 140101: Misfire, cylinder 1: Injection is switched off 102001: Air mass, plausibility: air mass too high 102901: Air mass 2, plausibility: air mass too high 102E11: Air mass meter: electrical fault or air mass implausible 140002: Misfiring, multiple cylinders: harmful to exhaust gas after starting 140102: Misfiring, cylinder 1: harmful to exhaust gas after starting 215109: Battery, battery electronics: defective 121201: Boost pressure sensor, plausibility, overrun: pressure too high 138104: Exhaust flap actuator, signal line: open |
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10-17-2021, 09:27 AM | #20 | ||
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10-17-2021, 09:54 AM | #21 | |||
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10-17-2021, 05:29 PM | #22 |
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The first few things I'd do is check the MAF sensors for voltage and then measure resistance to ground to make sure they work, vacuum leak test (smoke method), swap MAF sensors to other bank for testing and then I'd swap cyl 1 plug/coil first to another cylinder, if it follows there you go. If stays on one then injector must be the culprit
Run a compression test to be sure on that cyl. The big question is what mods are on the car, are you on E and what recently changed with the car? Without that input the good fellas on here can't help you. Good luck.
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