Please Help! 30FF Charging Pressure Control, Boost Pressure Too Low

Bimmerguy271 · 06-30-2018, 08:31 PM

Hey guys I'm new to this forum and I really need some help from you guys. My car is throwing the 30FF code and I dont know what the problem could be since ive been told it could be a bunch of things.

Long story short ive been getting the engine malfunction light come up once in a while over the past 4 or 5 months sending the car into limp mode but I could just shut the car off turn it back on and the power is all back. But now the car stays in Prius mode and the light comes on everytime I gun it now. I also changed vaccum lines 3 years ago. If anyone has any idea what it may be please let me know i'd really appreciate you input on this.

Blaze439 · 06-30-2018, 08:58 PM

http://www.n54tech.com/forums/showthread.php?t=13114

Aceway · 07-01-2018, 07:13 AM

Any modifications?

Bimmerguy271 · 07-01-2018, 12:20 PM

Quote:

Originally Posted by Birrcrin

Any modifications?

No just JB4

bleicht · 07-01-2018, 12:56 PM

I just had this problem after replacing my vacuum hoses (about 3 months ago.) It turns out the vacuum hose that goes to the intake manifold blew off. I used silicone hose but it seems like the material may have been softened by the oil in the intake although I'm not sure.

The fix was to re-attach the hose and use a zip tie to secure it. The engine runs much better with a properly functioning boost system.

06-30-2018, 08:31 PM	#1
Bimmerguy271 Registered 1 Rep 2 Posts Drives: E92 335i Join Date: Jun 2018 Location: Chicago iTrader: (0)	Please Help! 30FF Charging Pressure Control, Boost Pressure Too Low Hey guys I'm new to this forum and I really need some help from you guys. My car is throwing the 30FF code and I dont know what the problem could be since ive been told it could be a bunch of things. Long story short ive been getting the engine malfunction light come up once in a while over the past 4 or 5 months sending the car into limp mode but I could just shut the car off turn it back on and the power is all back. But now the car stays in Prius mode and the light comes on everytime I gun it now. I also changed vaccum lines 3 years ago. If anyone has any idea what it may be please let me know i'd really appreciate you input on this.
	Appreciate 0 Tweet Quote

06-30-2018, 08:58 PM	#2
Blaze439 Private First Class 93 Rep 117 Posts Drives: E30 Track Car 335XI Daily Join Date: Mar 2018 Location: Gales Ferry, CT iTrader: (0)	http://www.n54tech.com/forums/showthread.php?t=13114
	Appreciate 0 Quote

07-01-2018, 07:13 AM	#3
Aceway Captain 462 Rep 875 Posts Drives: E82 135i / F25 28i Join Date: Feb 2018 Location: SoCal iTrader: (2)	Any modifications?
	Appreciate 0 Quote

07-01-2018, 12:56 PM	#5
bleicht Private 8 Rep 52 Posts Drives: 08 335i Join Date: May 2011 Location: Socal iTrader: (0)	I just had this problem after replacing my vacuum hoses (about 3 months ago.) It turns out the vacuum hose that goes to the intake manifold blew off. I used silicone hose but it seems like the material may have been softened by the oil in the intake although I'm not sure. The fix was to re-attach the hose and use a zip tie to secure it. The engine runs much better with a properly functioning boost system. Last edited by bleicht; 07-01-2018 at 01:20 PM..
	Appreciate 0 Quote