Simple 2 or 3 LED rich/lean 4wire O2 sensor indicator
 

Hi All,

Has anyone used a simple rich/lean indicator connected to a typical car's standard (4-wire) O2 sensor as a driving aid?

e.g.

red for > 0.55V
yellow for 0.4 - 0.55V
green for <0.4V

(exact voltages may vary)

So that the driver has feedback on keeping the ECU out of rich/power mode?

Maybe it can be simplified to red/green with a threshold at 0.45V, or a single on/off LED...

Cheers.

DIY Air / Fuel Ratio Meter
Cheers

also by circumchance researching something else, came across this thread:
http://ecomodder.com/forum/showthrea...uges-1286.html