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BMW 3-Series (E90 E92) Forum > BMW E90/E92/E93 3-series General Forums > General E90 Sedan / E91 Wagon / E92 Coupe / E93 Cabrio > 30FC code/limp mode



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      09-20-2017, 02:35 PM   #1
335imikey
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Drives: BMW 335i N54
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30FC code/limp mode

Ive been having a recurring problem with when I get into the top of 3rd gear my car will go into limp mode saying engine malfunction. Ive taken my car into a shop to find a missing O ring on the charge pipe to throttle body connection which I then replaced. Finally the car was running great again until I tried doing a pull on the freeway I got the code once again I'm at a dead end and just need some help.
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      09-20-2017, 08:58 PM   #2
kens
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Lots of things could be wrong

Vacuum lines, they tend to crack and dry out
Inlet cracks/connectors/etc
Turbo seals
intercooler connections
lower chargepipe
etc
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