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BMW 3-Series and 4-Series Forum (F30 / F32) | F30POST > Technical Forums > N55 Turbo Engine / Drivetrain / Exhaust Modifications > Drivetrain malfunction. Bms stage 1
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      03-07-2018, 03:36 PM   #23
GatorF30
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Quote:
Originally Posted by zole2112 View Post
The common code I am seeing when I get the Drivetrain Malfunction lately when it pops up seems to be low fuel pressure. I'm running 100% 93 octane with my JB4 on map 5. Still on stock LPFP for now.

I had Drivetrain Malfunction twice in the last couple of months, once when I accelerated hard (not wot) soon after starting the car but it was cold out, like around 18 deg F outside so I was not at full operating temp...bad idea
The second time was last week when I was driving on the highway, at full temp, on cruise control in Sport+ Manual in 8th gear. I went wot to pass someone, threw the code and had to pull to the side to restart the car and clear the code

Both times I had low fuel pressure code show up

Still collecting data and working on finding root cause.
Disconnect the fuel pressure sensor part of the harness and return that connection to stock. I promise you it'll go away.
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      12-30-2023, 12:42 PM   #24
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Has anyone experienced the drivetrain limp mode after the stage 1 remap in the active hybrid 3? Happened a couple of times and the remapping team told me it was a possibility to happen, but only today did it stitch me up when I overtook in sports it got me infront then slumped me into limp mode 🫣🙃once I stoped the car turned it on and off it started fine no problems thankfully so my next move is probably going back to the ecu team 💰
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      12-30-2023, 04:22 PM   #25
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Maybe6 months ago there was someone with issues on BM3 with an active hybrid. I'm sorry but I'm def too lazy to go hunt for it. I bet someone like Jeremy knows exactly which thread i'm talking about
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      12-31-2023, 02:01 PM   #26
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I do know the thread, but i dont have it handy. There was also one in general section. https://f30.bimmerpost.com/forums/sh....php?t=1933204

i would just click back through the pages here to find it.
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