Help with Tech edge wideband

[freemanteo]

Hi all,

I got a used tech edge 3A1 wideband controller and LA1 gauge. https://wbo2.com/3a1/default.htm

I managed to connect my tech edge to my laptop thru RJ45 to serial and serial to usb. The numbers are all weird and keeps cycling thru 3 readings. And sometimes it does not detech the wideband, i have to stop and record for VCM scanner to detect the serial port wideband.

Can anyone help me on the formula to get the AFR and Lamdba?

Thank you


For example this formula for LM1 thanks to asquinton.

Here's the Scanner set up:
1. add channel, serial port and pick innovate LM-2 from the list (A/F or EQ Ratio, your choice)
2. opposite click on the channel, hit transform
3. click on parameter option and pick transforms, oxygen sensors, Air-fuel ratio or EQ Ratio (your choice)
4. click on Innovate - LM-2
5. Click yes, it's good
6. In function, type in (input/68.05) + 7.36 = output for A/F ratio; or use (input/1024) + 0.5 = output for EQ Ratio
7. Job done

https://forum.hptuners.com/showthrea...-LM-2-Wideband