My boy, the genius, designed it for me. I knew 6 years of college would pay off

http://home.attbi.com/~elkozak/MainPage.html

 

Air Fuel meter installed in the blank cruise control switch location Custom narrow band...

sweet ******* idea!

 

That is a cool idea. But a wideband would be better...

Nice car.

-Max

 

I agree, a true wide band (0-5 vdc) is a must for proper tuning, but they have poor reliability over the long term & cost BIG BUCKS. Your ECU wouldn't recognize the higher voltage signal, so you would end up using two O2 sensors

By only displaying the upper voltage range (0.7-1.0 vdc) I don't get the dancing lights during normal cruise. In fact, it only lights up during idle & when I jump on it, otherwise it's dark. Plus it quite a bit more sensitive, each LED lights up at 0.03 vdc instead of 0.1 vdc.

Since it's the stock Mazda O2 sensor it's more for peace of mind than accurate info

Thanks for the compliments Max, I appreciate it.