esl narrowband sim
 

Can i use a wideband gauge narrowband output to esl and remove standard 02 sensor
Using maffless and get no cel when unplug 02 sensor

Yeah, I done this from my LM2 for a while. Seemed to work, I am back to the stock O2 sensor for the ECU now as it seems to work a bit better! I "guessed" the refresh rate of the LM2 and ECU wasn't ideal. But it worked good enough!

Ok I be using a different wideband so worth a try

Most narrowband emulations that use a Wideband sensor usually give the car a rather nervous feeling, as the reaction time of the wideband is much quicker, this can lead to a constantly adjusting ECU, and giving a lurching feeling on steady throttle.

What I did (and PLX recommends/suggests as an alternative) is mount a small capacitor between the signal wire and a ground.
This way the measurements from the ECU get equalised a bit before getting sent to the ECU.

So for example in standard form (without the cap) the ECU gets sent AFR values of 0.8 volt, 0.9 volt, 0.7 volt and 0.8 volt in half a second, and as a result has to correct 4 times in this half a second
With the cap fitted the ECU gets the normalised value of 0.8 (the sum of all 4 values above devided by 4) at once, thus has to make only 1 adjustment.

The above time/voltage values are completely hypothetical, but as an example they'll serve well.
So if you get the lurching steady throttle effect try a .50 farad cap mounted between the signal wire at the ECU and a ground.