how to avoid the oxysen sensor failure code?

haibozhang · 12-21-2011, 09:54 AM

when the ar cataless downpipe was fitted without a V5 or JB4?

thx

Kalud · 12-21-2011, 10:43 AM

You can always try a spark plug anti-fouler that distances the sensor from the flow enough to keep the readings down. I really don't know if it works well, you should search a bit.

Or

Relocate the secondary sensor after the secondary cat. But I think only n55 xdrive version have secondary cat...

See that thread

On a n54:

haibozhang · 12-21-2011, 11:37 AM

Quote:

Originally Posted by Kalud

You can always try a spark plug anti-fouler that distances the sensor from the flow enough to keep the readings down. I really don't know if it works well, you should search a bit.

Or

Relocate the secondary sensor after the secondary cat. But I think only n55 xdrive version have secondary cat...

See that thread

On a n54:

thx a lot
i've known the first way of using a spacer to keep the sensor higher, however if you drive your n55 harder, the code will also appare......

anyway, thx a million!!!!

i will try it again

IancoleTX · 12-21-2011, 12:46 PM

JB4 automatically clears o2 sensor errors! Sheesh, I'm starting to sound like a salesman lol

Kalud · 12-21-2011, 06:21 PM

Quote:

Originally Posted by IancoleTX

JB4 automatically clears o2 sensor errors! Sheesh, I'm starting to sound like a salesman lol

Procede too, but OP asked "without a V5 or JB4"...

IancoleTX · 12-21-2011, 06:26 PM

Quote:

Originally Posted by Kalud

Procede too, but OP asked "without a V5 or JB4"...

Oh good point. I think DPfix is also an option.

Kalud · 12-21-2011, 06:28 PM

Quote:

Originally Posted by IancoleTX

Oh good point. I think DPfix is also an option.

Not on the n55... Only for n54.

CJ421 · 12-22-2011, 07:58 AM

BMS CAN Tool - plug it into your ODBC port and it auto-clears.

12-21-2011, 09:54 AM	#1
haibozhang New Member 2 Rep 21 Posts Drives: E93 335 Join Date: Dec 2011 Location: Shanghai iTrader: (0)	how to avoid the oxysen sensor failure code? when the ar cataless downpipe was fitted without a V5 or JB4? thx
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12-21-2011, 10:43 AM	#2
Kalud Lieutenant 24 Rep 582 Posts Drives: e92 335i Join Date: Jun 2010 Location: Canada iTrader: (0)	You can always try a spark plug anti-fouler that distances the sensor from the flow enough to keep the readings down. I really don't know if it works well, you should search a bit. Or Relocate the secondary sensor after the secondary cat. But I think only n55 xdrive version have secondary cat... See that thread On a n54: Last edited by Kalud; 12-21-2011 at 10:49 AM..
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12-21-2011, 12:46 PM	#4
IancoleTX Dillo boxers 272 Rep 3,360 Posts Drives: 2019 M5C Join Date: Jan 2010 Location: USA iTrader: (14)	JB4 automatically clears o2 sensor errors! Sheesh, I'm starting to sound like a salesman lol __________________ 2019 M5C Matte MBB / Tartufo
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12-22-2011, 07:58 AM	#8
CJ421 Brigadier General 1559 Rep 4,109 Posts Drives: BMW M3 Join Date: Feb 2011 Location: Blue Bell, PA iTrader: (1) Garage List 2024 BMW M3 Sedan [9.50]	BMS CAN Tool - plug it into your ODBC port and it auto-clears. __________________ 2024 BMW M3 Sedan Frozen Pure Grey II/Fjord Blue, 6MT Past: 2021 Z4 M40i Frozen Grey II/Black Alcantara \| 2017 F30 340i Mineral Gray/Coral Red, 6MT \| 2011 E92 335i Le Mans Blue/Black, 6MT
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