Originally Posted by
NightStalker 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.