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.
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
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.
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
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?
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...
Autronic SMC and SM2 wideband input is 0-1volt = 10-30 AFR
Or, you could scale your wideband as 0-.5v=10-15 AFR
Quote from: lugnuts on October 06, 2009, 12:26:26 PM
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