Wideband sensor location

[roman.lysiak]

Of you that have installed a wideband gauge where did you install the sensor on the exhaust pipe?

 

Roman

 

 

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[Mike G]

This thread pretty well covers it. 

 

 

[Conserv]

If your goal relates to tii tuning, you’ll want to read the following thread:

 

 

Borrowed from the above thread are some examples (below) of bung locations, although the photos are really meant to accompany the text!

 

Regards,

 

Steve

 

[chargin]

Another version 

 

This routing goes into the existing Firewall hole 

 

 

[roman.lysiak]

Thanks guys.


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[BarrettN]

I've read installation notes for the Bosch 4.9 sensor that recommends a 10 degree minimum angle above horizontal to prevent any liquid coming into contact with the probe.

['76mintgrün'02]

I went for a more upright installation.  

I thought I had some photos of it under the car, but can't find them now.

It sits pretty close to vertical, between the transmission and the tunnel wall.

['76mintgrün'02]

I found one.

[PaulTWinterton]

3 hours ago, BarrettN said:

a 10 degree minimum angle above horizontal to prevent any liquid coming into contact with the probe.

 

4 hours ago, roman.lysiak said:

Thanks guys.

 

I see some pics with horizontal sensors.  I would worry that the sensor will burn out prematurely.  Angled is required to shed moisture. 

 

Vertical is really good, but more hassle to re&re.  IMHO. ?

Edited June 19, 2019 by PaulTWinterton

[chargin]

all 4 on my Audi are horizontal

 

[PaulTWinterton]

50 minutes ago, chargin said:

all 4 on my Audi are horizontal

 

 

Hmmm.  I'd expect Audi knows their stuff.  Good to know.

[uai]

I installed mine in an upright angled forward way - but unfortunately no pic at hand.

[Dudeland]

The idea of angling them is to make sure condensation doesn’t collect in the sensor. It will cause them to read incorrectly and burn out prematurely.

Ask me how I know


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['76mintgrün'02]

8 hours ago, PaulTWinterton said:

Vertical is really good, but more hassle to re&re.  IMHO. ?

 

Hi Paul!

 

I see little to no difference in difficulty based on horizontal vs. vertical positioning.  (I like having it tucked up out of harm's way).

 

The one I have feeds info to an Innovate LC-1 AFR gauge and it requires calibration in the open air before installation; after the first 500 miles and then annually, according to the instructions.

 

I pulled it out for the first re-calibration a couple of months ago and it was not a big deal.  I just spun up the wires counter-clockwise before spinning it back in.

 

On the Innovate site, they discuss bung length and claim that there is no need to dangle the sensor way out into the exhaust stream.  They say that doing so can lead to overheating/failure and suggest using a one inch long bung.

 

https://www.diyautotune.com/product/innovate-motorsports-extended-o2-sensor-bung-3764/ 

 

Here are some tips about extending the life of the sensor --

 

http://blog.innovatemotorsports.com/important-tips-to-get-the-maximum-life-out-of-your-o2-sensor/

 

Here's a quote about calibrating the sensor -- (fwiw)

 

Why do I need to calibrate the O2 sensor with Innovate products?

The answer is simple.....Accuracy!

 

Innovate Motorsports is the only wideband O2 device manufacturer on the market that allows the user to field calibrate the O2 sensor. Our patented sensor calibration allows compensation for the two main causes of inaccurate air/fuel ratio data; sensor wear and altitude. The alternative to calibrating your sensor in the field is to rely on the sensor’s Bosch factory calibration. The Bosch factory sensor calibration is done using a fixed atmospheric pressure value that may be incorrect for your location from the start!

[Einspritz]

8 hours ago, PaulTWinterton said:

I see some pics with horizontal sensors.  I would worry that the sensor will burn out prematurely.  Angled is required to shed moisture. 

 

I've had my sensors horizontal for many decades, although the LM-11 uses an internal heater so water vapor shouldn't be a problem.

 

So I guess it comes down to which type of sensor you are using.