Any success with Autronic SM2 and VEMS Wideband O2/EGT Sensor?

[prussian]

I was wondering if anyone has had success with the VEMS Wideband O2/EGT Sensor and an Autronic stand alone?  The Autronic needs a 0-1v output from the wideband.  I've tried to use the Innovates LC-1 with my Autronic SM2 two years ago with no success.

[rob@vems.co.uk]

The lambda output voltage is configurable with the VEMS Wideband, check the Extended Functionality section of:
http://www.vems.co.uk/VEMSWB/UserGuide/README.html

[prussian]

Yeah, it does look like it will work.  I just kinda want to hear from someone saying they've had success with it.
Innovate says theirs will work also, but I don't know of anyone that has gotten their product to work successfully with the SM2 Autronic.  I've tried to no avail.

[Ellisd]

Is this 0 - 1 volt signal to simulate a narrowband output?  If so i'm doing it on my standard toyota ecu, replacing the narrowband totally for fueling corrections with the vems wideband.  I do have to keep the sensor plugged in however to stop the heater circuit fault code from displaying.  I'm asuming this would be the same process on the autronic

[rob@vems.co.uk]

0-1v can simulate narrow or wideband output.
Narrow band set vout_conf = 1
For custom outputs vout_conf = 32 to 255 is key - we'd need to know what voltage Autronic want for lambda 1.  Do they want a scaled value OR do they want the raw LSU4 output?

[dnb]

I have successfully used a VEMS wideband with an Emerald K3.  It works well.

The same technique could easily be used for the SM2, but obviously with different voltages...

[lugnuts]

Autronic SMC and SM2 wideband input is 0-1volt = 10-30 AFR

Or, you could scale your wideband as 0-.5v=10-15 AFR

[GintsK]

Autronic SMC and SM2 wideband input is 0-1volt = 10-30 AFR

Or, you could scale your wideband as 0-.5v=10-15 AFR

What is resolution of DAC in VEMS Widebend unit?

May be reasonable choice is to scale 0...5V=10...15AFR and then add external 1:5 voltage divider.
It should give more precise output.

Gints