help with these codes

007_e350 · 07-06-2013, 02:14 AM

30FF Boost under target -- possible boost leak
2F84 No Description Found
2F81 No Description Found
2F9E Thermic oil level sensor

135Pats · 07-06-2013, 02:21 AM

You could have a boost leak from any number of places. On the cold side check the TB, manifold, charge piping, diverter valves, etc. If you can eliminate those parts go to the intercooler couplers and work back towards the turbos. Vac lines can also cause underboost issues.

007_e350 · 07-06-2013, 09:46 PM

Holy Guacamoly I have several issue..
Used this great DIY http://www.n54tech.com/forums/showthread.php?t=13114

1- Its not holding pressure at all... diverter valves are OPEN as in WIDE OPEN.. Swoooooooshhhhhhhing out air
2- the charge pipe had a missing bolt it was pretty loose
3- thats how far I could get as yet

what do I do with diverter pipes ? Is it possible to tighten the spring.. If I order new ones I dont know if the male's leakin or female......

07-06-2013, 02:14 AM	#1
007_e350 Lieutenant Colonel 230 Rep 1,909 Posts Drives: 335i 2008 MHD'd / x5d E70 Join Date: May 2013 Location: left lane iTrader: (3)	help with these codes 30FF Boost under target -- possible boost leak 2F84 No Description Found 2F81 No Description Found 2F9E Thermic oil level sensor
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07-06-2013, 02:21 AM	#2
135Pats Major General 461 Rep 6,478 Posts Drives: A few BMWs Join Date: May 2012 Location: Maryland iTrader: (3)	You could have a boost leak from any number of places. On the cold side check the TB, manifold, charge piping, diverter valves, etc. If you can eliminate those parts go to the intercooler couplers and work back towards the turbos. Vac lines can also cause underboost issues. __________________ E88 N54 Alpinweiss/Coral Red/Motiv HTA 3586r Tial .82AR/Other stuff...652WHP F30 N55 XDrive EBII
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07-06-2013, 09:46 PM	#3
007_e350 Lieutenant Colonel 230 Rep 1,909 Posts Drives: 335i 2008 MHD'd / x5d E70 Join Date: May 2013 Location: left lane iTrader: (3)	Holy Guacamoly I have several issue.. Used this great DIY http://www.n54tech.com/forums/showthread.php?t=13114 1- Its not holding pressure at all... diverter valves are OPEN as in WIDE OPEN.. Swoooooooshhhhhhhing out air 2- the charge pipe had a missing bolt it was pretty loose 3- thats how far I could get as yet what do I do with diverter pipes ? Is it possible to tighten the spring.. If I order new ones I dont know if the male's leakin or female......
	Appreciate 0 Quote