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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > Misfire on low RPM's/cruising, fine under moderate+ load

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      02-11-2021, 11:12 AM   #45
Derek Keenan
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Drives: bmw 335i
Join Date: Jan 2021
Location: arizona

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Originally Posted by Silent11N54 View Post
Originally Posted by Derek Keenan View Post
I swapped bank 1 injectors with bank 2 and coded them, first few minutes of driving it seemed fine then parked it and took it back out a few minutes later then started doing the stutter again, bank 2 was still doing the stutter and not so much bank 1, I've pretty much rulled out injectors considering it's only been bank 2, and it can't be 02s cause I've just replaced them, I also swapped bank 1 coils with bank 2 but still didn't work, I don't know what else Is left other than a walnut blast
im having a similar issue only at low rpm, stutter, hesitation. Anything past 4000rpm is smooth.

Im going to try swapping throttle body since i have a spare and inspecting the gasket there, see if it makes a difference. I have tried swapping a bunch of things with my other N54 and it still has the same stutter at low rpm. Vanos solenoids, boost solenoids, diverter valves, plugs, coils. I did feel a slight improvement when i reset the throttle adaptation for a short period of time.
Did throttle body fix the issue?
Derek Keenan
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