06-26-2020, 06:52 PM | #23 | |||
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06-29-2020, 11:14 AM | #24 |
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I'm on MHD 1+ and everything seems smooth with the last few updates by MHD (experienced minor throttle surging before). I've also had the valve cover replaced about 2 months ago (oil leaking), not sure if that made a difference.
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07-03-2020, 01:51 PM | #25 |
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Loving it. Stage 1+ but warranty is up now. Downpipe and intercooler for stage 2+ eventually. Also just had oil analysis done and it came back motor in great shape.
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07-04-2020, 12:31 PM | #27 |
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07-07-2020, 06:47 AM | #28 |
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07-16-2020, 06:54 PM | #29 |
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On MHD Stage 2+ I get extra codes that don't come up on Stage 2 or 1+. The 352A I see the on the MHD thread from e90post - TwistedTuning replied and said just to reflash the map to make 352A go away. I switch maps a little too frequently playing with settings and it seems the 352A always shows up eventually on 2+. I don't notice anything different when the code pops up but I might not be sensitive enough to feel if there is an issue. I've flashed back to stage 2 (HF DP / 5" IC) and will monitor if these codes pop back up.
MHD shows: 352A Protection against tampering: Engine performance too high BimmerLink shows: C920 PT-CAN MESSAGE (ID 1A0, SPEED VIA PT-CAN) C921 PL2: SERVOTRONIC MOTOR DATA / PL4: ELECTR. VOLUME FLOW C922 PT-CAN MESSAGE (ID C4, STEERING WHEEL OVER PT-CAN) |
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12-07-2020, 01:09 PM | #30 |
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Anyone here move from Dinan stage 2 (on the 35i) to one of the MHD tunes? If so - which MHD tune did you move to and how would you compare it to the Dinan Stage 2?
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2019 X3 M40i | TU Pump | AA DP | VTT GC | xHP Stage 2 | Dorch ECA | MHD Odin FF | Carbon Black | Adaptive Suspension | M-Sport Rear Diff | 20" staggered
SOLD! 2015 X1 35i | Alpina Trans Tune | Dinan Stage 2 | Bilstein B6 |
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12-16-2020, 10:51 AM | #31 |
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Nothing really relevant to add... but... I Just installed a VRSF downpipe, charge pipe and BMS intake with a JB+... I don't think I'll add the FMIC as I don't think I'll need it for occasional pulls... I am dying to get the MHD so my X1 can be the ultimate DD! Hopefully I'll be able to by new year (crossing fingers)
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12-27-2020, 04:52 PM | #32 | |
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12-31-2020, 01:04 PM | #33 | ||
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12-31-2020, 02:00 PM | #34 |
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12-31-2020, 04:24 PM | #35 | |
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12-31-2020, 05:47 PM | #36 |
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So I just got a cylinder misfire which means time for new spark plugs/coils...
Any recommendations? I'll dial the tune down until that gets figured out
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12-31-2020, 06:18 PM | #37 | |
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From what I read on the forums, stock plugs are fine FBO stock turbo, don't need to go colder. Forum's usual answer is to gap the plugs to .022, but I'm at .028 on stage 2+ CA 91 crap gas. I had some stuttering issues with brand new China made Delphi coils & Bosch plugs (gaps not consistent .028-.030). I replaced them with genuine BMW Delphi coils & NGK spark plugs gapped them myself at .028 and have been stutter free for a few thousand miles. I think like 98% of the times, the China Delphi coils are fine, but I'm blaming the coils or possibly my gap was too big. If you want to save money, OE China made Delphi coils & gap plugs down to .022-.025. I'm giving it the benefit of the doubt that I was one of the unlucky ones on bad coils or the gaps were too wide. If you're willing to spend more, get the Genuine BMW Coils (also made by Delphi, but with the BMW logos on it and FCP Euro shows made in Portugal). Spark plugs, I don't think you can go wrong with either Bosch or NGK. Bosch ZR5TPP33 NGK NGK-97968 (I prefer NGK mainly because it's Japanese) Last edited by solidsleeper; 12-31-2020 at 06:29 PM.. |
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12-31-2020, 09:01 PM | #38 | ||
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I just purchased this truck last year and the PO stated it had new spark plugs but based on what I feel those are probably stock spark plugs. I purchased the stock plugs as I'm not planning on running high power, thanks!
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03-11-2021, 02:12 PM | #39 |
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So after installing new spark plugs and new coil packs, the misfire continues...
I keep getting MAF codes, so I'll try cleaning it first and resetting adaptations to see if that helps... otherwise, I'll try swapping MAF and MAP with another N55 to see if that clears it to then buy new ones. Pray for me
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03-11-2021, 03:38 PM | #40 | |
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Also, what is the MAF code you're getting? / you were getting these codes before mods/bolt-ons? PS I'm praying for you buddy!!! I had some minor issues for a while, no engine codes, but car didn't feel 100% for a few months. For example, one of the meth bung plug on my ER chargepipe wasn't tight lol. |
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03-11-2021, 06:26 PM | #41 | |
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I've had the 29D9 code for a little bit, but I thought that it was there because I had JB+ until just before installing MHD. Every time it misfires I send an error code log to my email and it's usually a different cylinder that's misfiring. My shop put all new spark plugs and coil packs and the problem seems to be exactly the same. The only constant is the 29D9 error code, which is Intake Air Temperature. I'm going to clean the MAF tomorrow morning (to be on the safe side, I'll disconnect the battery) and then reset the adaptations to make sure there are no lingering issues. We shall see tomorrow! LOL I feel you about the plugs, I made the guy in the shop double-check every bolt in the downpipe to make sure they were tight!
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03-11-2021, 08:34 PM | #42 | |
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I'd maybe suggest putting the stock intake back just as a guess/experiment (I have no experience with aftermarket intakes, but I read too much forums and a lot have weird issues/CEL lights that can come up with them). Edit: Here's an example thread I just googled real quick https://www.1addicts.com/forums/show....php?t=1277178 |
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03-14-2021, 01:05 PM | #43 | |
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The misfire is either cylinder 4, 5, or 6, which is bank 2. Based on what I read, one guy had the same problem, and upon changing the oxygen sensor wiring the problem went away, apparently, the shop had switched them. Maybe that's my problem... I just don't know where the harness is in the N55... all I've seen is for N54. I'll check with the shop owner to see if he really tried new coils or coils from another car... if it's from another car then we may have a culprit... We shall see!
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03-14-2021, 09:44 PM | #44 |
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Not sure how different e84 is from e82 135's, but I just came across this video researching how to install a downpipe, and they show how to get to the O2 sensor plugs, since they disconnect them for the install. The O2 sensor plugs make their first appearance around 5:45 into this video.
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