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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 > Erratic idle cel and ses



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      Today, 08:28 AM   #1
Ghostisdead
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Erratic idle cel and ses

Ive been looking at the forum for some help but dont see anyone having the same issues as me. I have a 2013 335is and it’s fluctuating aggressively at idle trying not to die. I have these codes. I did replace the throttle body thinking maybe it was that but it hasn’t helped(bought the Amazon one because i didn’t have time to wait in the fcp euro part, i can get that one if yall think its recommended). Could it be the wastegate? Any help is appreciated thanks
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      Today, 09:37 AM   #2
konstat
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Quote:
Originally Posted by Ghostisdead View Post
Ive been looking at the forum for some help but dont see anyone having the same issues as me. I have a 2013 335is and it’s fluctuating aggressively at idle trying not to die. I have these codes. I did replace the throttle body thinking maybe it was that but it hasn’t helped(bought the Amazon one because i didn’t have time to wait in the fcp euro part, i can get that one if yall think its recommended). Could it be the wastegate? Any help is appreciated thanks
Wastegate is normally open and at idle it shouldn’t be actuating so I wouldn’t think it’s the wastegate. Are you able to send a log at idle?

Have you reset throttle adaptations and waited the 30 seconds stated by MHD before turning on the ignition?
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      Today, 09:46 AM   #3
Ghostisdead
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I dont have logs but yes i did the reset a few times and it tends to make it worse. If i let it run ling enough it get used to it and only at some stop does it start surging again. Just to confirm the reset procedure is key in, press start, push down accelerator past kickdown for 30s, press start, release accelerator and then wait two minutes?
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