High vibrations on iddle after installing VRSF catless downpipes. Any help!?

fperezl9 · 11-07-2015, 12:51 AM

Hello everyone!

I had the vrsf catless downpipes installed on my 335i yesterday. They work and sound great, however when i first start up the car there is this really high vibrations on the car and engine, i checked the emission codes with the jb4 and i get 2C24 which means ""Lambda proben in front of catalytic converter, muddled"
The guy who installed them said it was normal since they are catless downpipes but i doubt it! Any idea what it could be? Maybe the o2 sensors were damage? Or switched out when re connecting.

fperezl9 · 11-07-2015, 09:58 AM

No help?

wren57 · 11-07-2015, 10:17 AM

I have the same problem with ARs that were put on yesterday. I'm guessing they're just rotated a bit wrong and making contact when at idle. Won't know without getting under the car.

Jairomvp · 11-07-2015, 12:28 PM

mine vibrate around 800rpm to 1,300rpm, but is not that bad, that happened after i lowered the car.

tc535i · 11-07-2015, 12:51 PM

Sounds like theyre rubbing the subframe. Try rotating them a bit.

11-07-2015, 12:51 AM	#1
fperezl9 New Member 0 Rep 5 Posts Drives: 08' 335i convertible Join Date: Oct 2015 Location: virginia iTrader: (0)	High vibrations on iddle after installing VRSF catless downpipes. Any help!? Hello everyone! I had the vrsf catless downpipes installed on my 335i yesterday. They work and sound great, however when i first start up the car there is this really high vibrations on the car and engine, i checked the emission codes with the jb4 and i get 2C24 which means ""Lambda proben in front of catalytic converter, muddled" The guy who installed them said it was normal since they are catless downpipes but i doubt it! Any idea what it could be? Maybe the o2 sensors were damage? Or switched out when re connecting.
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11-07-2015, 09:58 AM	#2
fperezl9 New Member 0 Rep 5 Posts Drives: 08' 335i convertible Join Date: Oct 2015 Location: virginia iTrader: (0)	No help?
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11-07-2015, 10:17 AM	#3
wren57 Roll Tide 603 Rep 2,358 Posts Drives: 335i Join Date: Jul 2010 Location: St Louis iTrader: (10)	I have the same problem with ARs that were put on yesterday. I'm guessing they're just rotated a bit wrong and making contact when at idle. Won't know without getting under the car.
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11-07-2015, 12:28 PM	#4
Jairomvp Banned 120 Rep 348 Posts Drives: 2011 335i xdrive Join Date: Jun 2014 Location: Northborough,ma iTrader: (1)	mine vibrate around 800rpm to 1,300rpm, but is not that bad, that happened after i lowered the car.
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11-07-2015, 12:51 PM	#5
tc535i Lieutenant Colonel 220 Rep 1,818 Posts Drives: 2007 335i, 2001 330i, 1995 M3 Join Date: Sep 2013 Location: West Los Angeles iTrader: (1)	Sounds like theyre rubbing the subframe. Try rotating them a bit.
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