How to connect a wideband to the EGR input

[EDS50]

This is a detailed step by step on how I installed my Innovate LC-1 Wideband controller to work with QuarterHorse v1.4. Although this information should work for any other datalogging device (e.g. TwEECer RT) supported by BinaryEditor. However for wiring up Wideband controllers other than the Innovate LC-1, you'll want to refer to your wideband controller's documentation for correct wire colors and actual transfer values but the basic steps illustrated here should be very similar.

Note: This FAQ assumes that you already have an installed and properly functional Innovate LC1 wideband on your vehicle and that you are using BinaryEditor 2009 Build 32 or newer. Also your EGR must be disabled (PFEHP) in Binary Editor.

1. Locate the Analog Output wire of the LC1 controller. It will be either the yellow (analog out 1) or brown wire (analog out 2). For this example, the brown wire (analog out 2) is used since it is configured, by default, to be the wideband output.
2. Connect this output to pin27 on your EEC (brown/light green stripe wire – 88-95 5.0 cars). If you are working on a different vehicle, then check your vehicle's EVTM or wiring diagram for correct wire markings AND EEC pinout. There are two ways this can be done:
   
   • Connect it to the wire directly at the EGR, this tends to be the most common method.
   • Connect it directly to pin27 on the connector to your EEC. This is the method I used, as I feel it leaves less room for error from electrical resistance (shorter wiring). I simply used a t-tap so I didn't have to cut the wire and splice or make too much of a mess.
3. Assuming all electrical connections are good, the next step is to open BinaryEditor.
4. Click on the Hardware tab.
5. In the Moates Window you will see the Transfer tab. Click it to enter the transfer function and enter the following:
   

   

   InnovateLC1_Transfer.jpg (17.95 KiB) Viewed 1410 times

   
   
   Since Wideband voltage feedback is linear and doesn't require all these entries, you may want to experiment with the following recommendation:
   

   Use as few points in the transfer function as possible. The more points you have defined, the more processor time is required to look up the correct value as data comes into the PC.

   I personally have not tried it as I am not experiencing any issues with processor time or speed delays. However, this recommendation may prove to be helpful and is the reason why I included it.
   
6. Once that is complete, you will see a drop down window under the Transfer button. This needs to be changed to AFR.
7. Click on the data logging tab to confirm that the EVP tag has been changed and now shows AFR. Also make sure it is selected for datalogging. At this time, you may also wish to save the payload.

If all is correct, then once your wideband O2 sensor is heated up, you should be able to start data logging and see the A/F ratio displayed in the digital/analog dashboard in BinaryEditor. If not, go back and make sure all electrical connections are correct and repeat step 3.

Note: I use the Innovate XD-16 gauge as well and have verified and confirmed the accuracy of the AFR display values between the XD-16 gauge and the BinaryEditor display. You may experience a slight or intermittent difference of +/- .1 or less in the values shown between the Gauge (if you are using one) and the BinaryEditor display. If so, I have found this to be attributable to a few things like the resistance in the wiring and or the speed the information is displayed. I personally have not had a problem with accuracy since my set up is new and calibrated correctly. Older units may suffer in accuracy just because of age or condition of the sensor being used. If you experience consistent accuracy issues you may want to recalibrate the sensor or replace it.

** If anyone sees any errors or has additional information to add to this FAQ, please let me know **

I would like thank Jon94GT for allowing me to use his original write up as a template and 86GT for the additional information.
How do I connect and datalog my wideband with TwEECer?

[cgrey8]

It seems adding an antifouler spacer to the WB may help extend the life of the WB. Here's some info from Cougar5.0 that came from a different WB thread:

I made a spacer for the sensor using a spark plug anti-fouler sold in the "Help!" section of most auto parts stores.
I used the Help! P/N 42002 18mm tapered seat non-fouler (due to it's longer length compared to the 42009) which I modified so the sensor would fit into it. I counterbored the large diameter using a 5/8" bit so the large diameter of the sensor would not bottom out. I added about 0.075" depth - from ~0.75" deep to 0.825" deep - DO NOT bore any deeper or you'll get into the diameter of the 18mm male threads and have 2 pieces on your hands. I then drilled out the smaller diameter to 1/2" so the sniffer "nose" of the sensor would fit. I beveled the 1/2" hole using the 5/8" bit so the gasses would tumble a bit as they pass over the edge of the opening & hopefully this will minimize any venturi effect. I then used the gaskets from a Help! 42009 spark plug non-fouler kit on both sides as the tapered seat of the 42002 would not seal well against the exhaust bung and the sensor seals better (and has to go less deep into the female threaded end) when using a gasket.

You can see the gaskets on either side of the spacer (pic in previous post above). I've run the new sensor for a bit and it seems to be working fine. I was a bit concerned about speed since the sensor is not directly in the exhaust flow, but the reaction time seems to be as fast as it ever was based on datalogs I've taken so far. With the sensor out of the direct airflow and the spacer acting like a heatsink/thermal mass, I expect that the sensor will likely live a long and happy existance. Total cost of the spacer - $9 (1 - 42002 $4, 1 - 42009 - $5).