Going Catless. What to do with remaining O2 Sens?

jessetaylor1 · 05-09-2018, 06:38 PM

Hey,

My Wagner catless downpipe should arrive next Wednesday.

Wondering if anyone has install tutorial or instructions?

Additionally, I'm wondering what I do with the O2 sensors? I don't want them to just hang down. Can I disconnect them from the car or do I zip tie them up somewhere?

Thanks.

///M² · 05-09-2018, 06:44 PM

Quote:

Originally Posted by jessetaylor1

Hey,

My Wagner catless downpipe should arrive next Wednesday.

Wondering if anyone has install tutorial or instructions?

Additionally, I'm wondering what I do with the O2 sensors? I don't want them to just hang down. Can I disconnect them from the car or do I zip tie them up somewhere?

Thanks.

Just hit up youtube for the install, not many M2 videos but quite a bit of N55 installs.

You need to install the sensors back in the downpipe, do not remove them.

NO_USER_ · 05-09-2018, 07:23 PM

Sensors stay.

Xchange43 · 07-18-2018, 03:04 PM

Just a question, is anyone tried those O2 mini cats that we have to install in there or the cable mod to bypass the o2 sensors ?

Bee Pee · 07-26-2018, 05:27 AM

Quote:

Originally Posted by Xchange43

Just a question, is anyone tried those O2 mini cats that we have to install in there or the cable mod to bypass the o2 sensors ?

Install a lambda spacer/elbow in the 2nd/downstream O2 fitting on decat and then re-install O2 sensor - should keep you error-free....

http://indigo-gt.com/bms-lambda-spacer/

Xchange43 · 07-27-2018, 12:51 PM

Quote:

Originally Posted by Bee Pee

Quote:

Originally Posted by Xchange43

Just a question, is anyone tried those O2 mini cats that we have to install in there or the cable mod to bypass the o2 sensors ?

Install a lambda spacer/elbow in the 2nd/downstream O2 fitting on decat and then re-install O2 sensor - should keep you error-free....

http://indigo-gt.com/bms-lambda-spacer/

Ha thanks!! Is anyone tried these before?

Thanks

Hasan Shaikh · 07-29-2018, 05:41 AM

Quote:

Originally Posted by Xchange43

Ha thanks!! Is anyone tried these before?

Thanks

I have not tried these on an M2. But have used them on various other cars including M3, M5 and M6 and they work perfectly.

Maks///M2 · 07-30-2018, 10:55 PM

I just plugged mine right back in. Haven't had any issues yet

Pop23 · 08-05-2018, 02:27 AM

Keep the sensors in and disconnect from the plugs under the engine cover. Its alot easier than trying to remove the sensors whilst the downpipe is connected.

05-09-2018, 06:38 PM	#1
jessetaylor1 Second Lieutenant 171 Rep 294 Posts Drives: 2018 AW LCI Join Date: Nov 2017 Location: USA iTrader: (0)	Going Catless. What to do with remaining O2 Sens? Hey, My Wagner catless downpipe should arrive next Wednesday. Wondering if anyone has install tutorial or instructions? Additionally, I'm wondering what I do with the O2 sensors? I don't want them to just hang down. Can I disconnect them from the car or do I zip tie them up somewhere? Thanks.
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05-09-2018, 07:23 PM	#3
NO_USER_ Captain 538 Rep 752 Posts Drives: . Join Date: Jan 2017 Location: . iTrader: (2)	Sensors stay.
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07-18-2018, 03:04 PM	#4
Xchange43 Private First Class 61 Rep 132 Posts Drives: 2018 F87 BMW M2 LCI Join Date: Jul 2013 Location: Montreal iTrader: (0)	Just a question, is anyone tried those O2 mini cats that we have to install in there or the cable mod to bypass the o2 sensors ? __________________ 2011 BMW X1 28 (sold) 2013 BMW 328 Sportline (sold) 2018 BMW M2 LCI (current)
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07-30-2018, 10:55 PM	#8
Maks///M2 Private First Class 271 Rep 166 Posts Drives: 2017 M2 Join Date: Dec 2016 Location: Garage iTrader: (0)	I just plugged mine right back in. Haven't had any issues yet
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08-05-2018, 02:27 AM	#9
Pop23 Registered 0 Rep 3 Posts Drives: BMW M2 Join Date: Apr 2018 Location: London iTrader: (0)	Keep the sensors in and disconnect from the plugs under the engine cover. Its alot easier than trying to remove the sensors whilst the downpipe is connected.
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