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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 > New Throttle pulsing under acceleration



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      11-08-2019, 10:48 PM   #1
dakotacoates
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New Throttle pulsing under acceleration

Hey everyone I know that this topic has been touched on before in this forum but I am having Trouble linking the exact description people are having to my car my problem is when I gave him the car throttle and park and hold is that a throttle I can watch the RPM bounce around between 300 to 500 RPM up and down and this translates to somewhat of a bucking sensation when driving in traffic I have AJ before with a MHD back end flash catless downpipe's work DCI A charge pipe and blow off valve and a cat back exhaust This just recently started happening and I don't know what parts need to be replaced or what I need to be looking at to try and solve this issue if anyone else has experienced this or read about it please let me know what to start with and what my possible problems could be
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      11-08-2019, 11:48 PM   #2
relative4
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The thread title seems to indicate you have a new throttle body. Is that correct?
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      11-09-2019, 02:23 PM   #3
dakotacoates
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Quote:
Originally Posted by relative4 View Post
The thread title seems to indicate you have a new throttle body. Is that correct?
No sorry I do not I just meant I made a new thread for it because it has been touched on before
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      11-09-2019, 03:25 PM   #4
relative4
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Please post a log.
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      11-09-2019, 08:58 PM   #5
924er
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I had something similar that was resolved after performing a full reset of adaptations. It was more evident after getting my valves clean and that when it got annoying. All good now
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      11-10-2019, 06:58 PM   #6
Chris@VargasTurboTech
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Full adaptation reset. If that doesn't work look at age of O2 sensors. If that doesn't work, injectors.
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      11-12-2019, 07:59 PM   #7
dakotacoates
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Quote:
Originally Posted by Chris@VargasTurboTech View Post
Full adaptation reset. If that doesn't work look at age of O2 sensors. If that doesn't work, injectors.
Okay so can I reset all my adaptations with my MHD BEF if I go into the DME with my tablet in the OBD 2 port or is there a special process also I have already reset my throttle a few times thinking that would help
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      11-12-2019, 08:11 PM   #8
dakotacoates
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New Throttle pulsing under acceleration

I also would post a log but I don't have a monitor or a jb4 wireless unit
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