[arunvader]

Hello Everyone!

2012 Military.

So I just installed my new D & D exhaust and while removing the old one I believe my O2 sensor broke. At the end of the sensor there was a white tab that decided it didnt want to stay connected. I went ahead and installed the exhaust and screwed the O2 sensor into the new exhaust. After the install I started the bike up and noticed that the check engine light was on. Pretty sure It was because of the sensor, but I still decided to take the bike out for a 5 minute ride to see if the bike adjusted to the new exhaust. Of course it didnt. When I slowed down... the bike would backfire. Do you guys know where I could purchase a new O2 sensor?... and does can the engine light and backfire be due to faulty O2 sensor?

Cheers & happy riding

[Arizoni]

Yup.  If the computer doesn't get a reading from the Oxygen sensor the MIL will stay lit.

You can try calling Nfieldgear at 1-800-358-0938 to see if they will sell you a replacement.
It might be one of those parts they will only sell to a dealer so if that's the case, that's where you should take your bike.

In the meantime, you can ride the bike with the computer running on "Fail safe" but the backfiring on deceleration tells me it's running lean so it isn't a good idea to ride it very far.

[gremlin]

There is a diagnostic connector that permits you to read the MIL code by watching the lamp, and, counting the flashes.

[arunvader]

Thanks for the help. I called up my local dealer today and he sold me the O2 sensor. Picked it up and installed it real quick and the bike is back to normal.

Cheers

[b.sheets]

how much was the sensor? just curious for future reference

[arunvader]

$110.95

[Ducati Scotty]

Ouch!  But IIRC that's about what the last one for my car cost. 

Scott

[mplayle]

Yep, that price is in line with the cost of any O2 sensor - factory or aftermarket.  I paid about that for each of the two required on a 2002 MINI.  When I put an Air/Fuel meter with wide-band O2 sensor in my 1961 Mini, that was about the price of just the sensor.

[b.sheets]

thanks for the confirmation.
I was thinking it would be in that ballpark!
-brandon

[Elliotthd]

I had an old Buick Regal that needed an O2 Sensor and it only cost me 52.00 bucks! I was all like, "Damn, what are all these people talking about 100+ dollars, this thing only cost 50!". Then my wife's Acura had it's cat go bad, and I decided to just replace both sensors while I had the cat out of the way. Man was that a slap to the face 180 a piece for the Acura. It would seem that older, American made cars use a cheaper O2 Sensor based on this one instance with zero proof or backup! Now, has anyone looked into if there are O2 alternatives out there? Like, could you grab one of those old Buick sensors and just switch the plug out since they are both a two wire sensor? I would be willing to experiment if my bike had an issue. 

[gashousegorilla]

I had an old Buick Regal that needed an O2 Sensor and it only cost me 52.00 bucks! I was all like, "Damn, what are all these people talking about 100+ dollars, this thing only cost 50!". Then my wife's Acura had it's cat go bad, and I decided to just replace both sensors while I had the cat out of the way. Man was that a slap to the face 180 a piece for the Acura. It would seem that older, American made cars use a cheaper O2 Sensor based on this one instance with zero proof or backup! Now, has anyone looked into if there are O2 alternatives out there? Like, could you grab one of those old Buick sensors and just switch the plug out since they are both a two wire sensor? I would be willing to experiment if my bike had an issue.

  The C-5 has a four wire narrow band O2 sensor , with a heater circuit. I believe it is an NTK unit, which you may be able to get a part number off it, and crab one at your local parts store in a pinch.... perhaps.  A two wire likely wouldn't work well with the Keihin ECU, as it is looking to verify that an O2 sensor is there, through the heater circuit.

[Elliotthd]

  The C-5 has a four wire narrow band O2 sensor , with a heater circuit. I believe it is an NTK unit, which you may be able to get a part number off it, and crab one at your local parts store in a pinch.... perhaps.  A two wire likely wouldn't work well with the Keihin ECU, as it is looking to verify that an O2 sensor is there, through the heater circuit.

Well then. I thought it was a two wire sensor. I'll look around for some cost effective 4 wire O2 sensors and do some experimenting. Unless of course, there isn't a such thing as a cost effective four wire O2 sensor.

[gashousegorilla]

Well then. I thought it was a two wire sensor. I'll look around for some cost effective 4 wire O2 sensors and do some experimenting. Unless of course, there isn't a such thing as a cost effective four wire O2 sensor.

  Nothing wrong with that ! As long as you get an equivalent Or the same part # from another Bike or Car.  It's a pricey part to get wrong......

 

[arunvader]

It connects right under the gas tank. 15 minute install and I was back on the road.

Picture of new D&D Exhaust. http://s18.postimg.org/eaj7yrfvd/IMAG0123_BURST002_COVER.jpg

[ace.cafe]

It connects right under the gas tank. 15 minute install and I was back on the road.

Picture of new D&D Exhaust. http://s18.postimg.org/eaj7yrfvd/IMAG0123_BURST002_COVER.jpg

Looks nice!