Front o2 sensor delete

[boostingsx98]

I have a wideband and Dsmlink for tuning and i was wondering if i would be able to delete my front o2 sensor? If i did would there be any negative effects to my motor and fuel consumption?

Thanks!

 

[Boomdeeze]

Why do you want to delete your front o2? I would keep it in the car as it tells your ecu when to add or take fuel. Get another bung welded further down your down pipe.

 

[crazyquik22023]

Yes you can put a wideband in the front o2 location. People do it all the time with no problems, including myself. Just make sure to wire the wideband into the front o2 pin in your ecu, and use narrowband simulation in Dsmlink.

 

[Boomdeeze]

Yes you can do that too but why not have two sensors to gauge if your car is running lean? I know people run their WB in the stock location but do you think AEM says to place it 36 inches away from the Turbo for no reason?

OP-Either way will work its just how you want to run it.

 

[crazyquik22023]

I agree either way will work.

 

[LiquidX]

Running a sensor in the front is 100% safe. Faster response, more accurate, less chances for leaks. I haven't had any problems with my WB sensor yet.

Just hook the wideband up to the ECU to be logged (doesn't matter which pin input you use) and enable narrowband simulation. Loose a sensor and gain a pin for logging.

 

[Boomdeeze]

Well maybe I will even look into simulating my front. I have my WB installed by the flex section. Then I wouldn't need MAP to weld in a bung in the pie cut o2 housing. And also no trying to squeeze the sensor in the tight space. So you haven't noticed anything different when simulating?

 

[U8NTRDY]

Running a sensor in the front is 100% safe. Faster response, more accurate, less chances for leaks. I haven't had any problems with my WB sensor yet.

Just hook the wideband up to the ECU to be logged (doesn't matter which pin input you use) and enable narrowband simulation. Loose a sensor and gain a pin for logging.

+1 I've been running my WB in the front location for quite a while now without any issue. The NB sim in dsmlink works great

 

[LiquidX]

Nope no issues. The only 2 things that can occur (that I know of) is that sometimes it will run rough until the controller "turns on" after the heating cycle. That is purely based on the time it takes for it to go through the cycle. If your controller starts to malfunction then that will turn off your narrow band signal as ECMLink is dependent on receiving a signal from the sensor still. Basically it will run like crap (just like not having a stock sensor in place when it's needed)

 

[boostingsx98]

Well i have just bought a new turbo setup and it does not have an o2 bung for the front. I have my wideband hooked up and located behind the CAT area.( i have a full 3inch exhaust with no cat just straight pipe) So well my car run properly? How would i run the wideband to the ecu, any writeups on this?

Thanks for the info guys!

I forgot to add that the rear o2 sensor is gone as well.

 

[LiquidX]

Well i have just bought a new turbo setup and it does not have an o2 bung for the front. I have my wideband hooked up and located behind the CAT area.( i have a full 3inch exhaust with no cat just straight pipe) So well my car run properly? How would i run the wideband to the ecu, any writeups on this?

Thanks for the info guys!

I forgot to add that the rear o2 sensor is gone as well.

It'll run fine you are going to be more prone to an exhaust leak (leaner reading) and it will not have as fast a response time as if it were up front. Your instructions that came with the wideband will tell you how to hook it up for logging. You should have a 0v-5v output wire, that's what gets hooked up to the ECU for logging the wideband.

A 0v-1v output wire is a narrow band simulation wire built in to the controller. That is unused if you have Link. That wire is for anyone wishing to utilize NBS with a stock ECU or an ECU that doesn't have provisions to create a NBS signal.

 

[XiKeiyaZI]

Front 02 Simulation is something I fought with for a long time. I picked up the habit of never starting the car completely until the LED signaling that my Wideband had finished warming alerted me that it was ready. Most of the time I never had an issue, but under high boost conditions my wideband signal would drop off and in turn screw my NB02 reading. This completely killed MPG and vehicle performance and irritated me.

I personally prefer running it in the rear 02 place. You can then neatly run it into the vehicle from under the driver seat, that way if anything ever happens to your WB, you aren't limping around running beyond rich. Why relay on one sensor to perform the job of two? Just make sure that your exhaust is nice and sealed.

I can admit, however, that having the WB02 up front does help with signal time and response...but we're talking a few milliseconds here.

 

[boostingsx98]

Soundsgood, thanks for the help!

 

[e_miller81]

The closer you are to the better the readings will be for your af. If you want the Wide band wire it into the ECU as others have mentioned.

 

[Geeb]

I know this thread is very old but I was wondering, because my new TBE has only one front o2 bung, is it harder to tune with just a wideband? Or should I weld up a second o2 bung in the downpipe?