Wideband Woes - Is it "better" to connect wideband directly to ECU?

[MAC]

I have been usign autoprom inputs with great results, however, it's best to calibrate it first. Set your MTX-L to output steady voltage (can be done using Innovate PC software) and see what is the autoprom value. Measure across the range and calculate the equation to get accurate WB readings.

Thanks for that tip Dzida.