Hiss noise

Chanka · 09-29-2015, 05:00 PM

My car is making a hiss noise at idle. Doesn't really change with idle. It's a 09 135i 73k n54. Car has JB4.

Power feels sluggish at lower Rpms for some reason.

Vacuum leak? Im reaching full boost and over boosting. It's spiking at 15 PSI . Any ideas ?

Also it's on the drivers side. Maybe the chargepipe or dv valves? But then I wouldn't hit full boost right?

nacaruh · 09-30-2015, 10:54 PM

Are you getting any error codes?
JB4 updated to the latest firmware?
Upload some logs for us, please, and screenshot of your JB4 config. (Datazap)

miro2296 · 10-02-2015, 02:09 PM

First thing that came to mind was the Charepipe. Might just take a look and make sure all looks ok and that it is not cracked!

Chanka · 10-02-2015, 02:38 PM

Quote:

Originally Posted by miro2296

First thing that came to mind was the Charepipe. Might just take a look and make sure all looks ok and that it is not cracked!

That's what I was thinking.

I'll try to get logs soon. I do see oil residue around the oem dv valves.
A ticking noise has been noticed as well. Not DI engine ticking.

09-29-2015, 05:00 PM	#1
Chanka Private 10 Rep 72 Posts Drives: BMS 135i Join Date: Feb 2015 Location: New York iTrader: (0)	My car is making a hiss noise at idle. Doesn't really change with idle. It's a 09 135i 73k n54. Car has JB4. Power feels sluggish at lower Rpms for some reason. Vacuum leak? Im reaching full boost and over boosting. It's spiking at 15 PSI . Any ideas ? Also it's on the drivers side. Maybe the chargepipe or dv valves? But then I wouldn't hit full boost right?
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09-30-2015, 10:54 PM	#2
nacaruh FOUO 415 Rep 873 Posts Drives: E82 Join Date: Mar 2013 Location: LA iTrader: (5)	Are you getting any error codes? JB4 updated to the latest firmware? Upload some logs for us, please, and screenshot of your JB4 config. (Datazap)
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10-02-2015, 02:09 PM	#3
miro2296 Colonel 57 Rep 2,251 Posts Drives: '08 Montego Blue BMW 135i Join Date: Nov 2008 Location: Round Rock, TX iTrader: (1)	First thing that came to mind was the Charepipe. Might just take a look and make sure all looks ok and that it is not cracked! __________________ ------------------------------------- BMW 135i/6 Speed/Montego Blue/Formula One Ceramic Tint/JB4 G4/AA Sport Intercooler/19 inch Iconz 880Z(19X8.5 & 19X10)/PSS 225/35 & 265/30/E93 M3 front sway bar/TRW front and rear Control Arms/BMS Drop In Filter/Dinan Exhaust/BlackLines/Upgraded \\\M RSFB
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