Thread: NismoTronic Tuning Software for TunerCode

I recently purchased one of your chipped b13 ecu's. (stepping down from obd2) I also have an AEM UEGO wideband with th 0-5v analog output. I noticed in the NismoTronic software it has UEGO as an option for datalogging. How would I go about installing the output from the UEGO? Do I splice it into the ecu somewhere?

Also, can this output be used as a replacement for the primary o2 sensor? Or will our ecu's not support a wideband sensor as the front/primary sensor?

At the moment the wideband cannot be used as the primary O2 sensor, so to log the wideband in the ECU, you would have to cut your primary O2 sensor signal wire and run the white wire from your AEM UEGO to the ECU.

The logging only works with the TunerCode firmware and there is detailed documentation on how to scale the 0-5v output from the wideband down to something the ECU can see. The ECU has a hardware cap of around 2.5 volts, so you would have to do a little bit of wiring to get it to work properly.

NismoTronic is setup to take into account the 0-2.5 Volt scale and multiply the incoming value by 2 to get the correct reading on the screen.

With the realtime boards that are being developed, you will not have to do any wiring trickery to get it to display correctly as the boards will have 4 analog inputs built onto it. So you will be able to run the wideband right to the RealTime board and set it up for logging much more simplistically.

After talking to you today with the reg problem, and from what I've heard you say so far, I certainly see one of those b14 boards in my future.

Not to go off topic, although you did throw it out there, are YOU the one developing a realtime board or is it someone else?

What kind of b14 board are you talking about?

does that really matter? I happen to know for a fact that the boards under development will be of better quality than we have ever seen before, so just leave it at that

I was only informed of a few things that are under development concerning the b14 boards. Not sure if the cat's been let out the bag already, but it's not my secret to tell.

Until we have a working board in hand, running reliably on the bench, it wouldn't be fair for us to say anything other than "it's being developed".

On the AEM UEGO wide band question, the 0-5V output can be divided in half with a simple 2 resistor divider (email me for more details if interested) and connected to the O2 sensor input on the ECU and logged as AFR as John said. With the current version of TunerCode, you have to disable closed loop feedback with this method, as the code for wide band closed loop is still being tested (it works, just needs some refinement and documentation). For closed loop feedback, you can set the UEGO to output a simulated narrow band signal and connect that directly to the O2 sensor input on the ECU, but you won't be able to log AFR that way. Another option for logging AFR is to convince John to write support code in Nismotronic for the serial output from the UEGO.

Dave

It is a fair question, but not I am not directly developing the hardware/firmware for the boards.

I have WAY too much on my plate to be able to pull something like that off in a timely manner. More details on this will surely surface in the near future!



I will most certainly look into this, I knew the blue wire was there for a serial output. It just seems odd the way they have it setup though. It isn't as simple as the Innovate direct serial setup or the SLC.

im curious if you burn chips? if so how much ? an do you have chips on hand or would you need to have them sent to you?