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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 > 30FF code help!



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      04-15-2013, 07:22 AM   #1
BAL278
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30FF code help!

Was on the highway holding 2nd gear around 4k rpm and when I put my foot down to go WOT... my car took a dump!

Got the following codes and I have a feeling that it might be the wastegate actuators (and not a boost leak in the vacuum lines or DV's):

29CF Glow Ignition Cylinder 3 (misfire?) I am changing plugs out this week anyway

30FF Underboost - It has to be the first turbo b/c it affected cyl 3 AND I threw O2 codes for the front bank, both sensors

2C9E & 2C32 - O2 lambda probes pre and post cat

I appreciate the help, if anyone has experienced this similar situation.. what was the issue?

Also, if in fact it IS the wastegate actuator.. what would remedy this? Should I try to check and tighten the flapper arm?

Might be time for VTT stage 2's!
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      04-15-2013, 09:37 AM   #2
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I had the 30FF code. You should do two things.
1. DEFINITELY change your spark plugs and ASAP
2. Check your boost lines, there may be a leak/crack. I had to get all of mine replaced, it was about $400.
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      04-15-2013, 09:53 AM   #3
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word, thanks... I'd prefer it be a line and not the turbo
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      04-15-2013, 12:35 PM   #4
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I had 30ff this spring. All I had to do was get out a screw driver and tighten up all the hose clamps for the intake air that I could reach top side. 30ff gone.
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      04-15-2013, 12:58 PM   #5
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Quote:
Originally Posted by scottp999 View Post
I had 30ff this spring. All I had to do was get out a screw driver and tighten up all the hose clamps for the intake air that I could reach top side. 30ff gone.
Good to know! I'll definitely try that!
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      04-15-2013, 03:50 PM   #6
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Anyone else?
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