Fuel Economy, Hypermiling, EcoModding News and Forum - EcoModder.com - View Single Post - Simple 2 or 3 LED rich/lean 4wire O2 sensor indicator

gikard · 07-01-2009, 05:53 PM

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.

07-01-2009, 05:53 PM	#1 (permalink)
gikard EcoModding Lurker Join Date: Jul 2009 Location: San Jose Posts: 7 Thanks: 0 Thanked 0 Times in 0 Posts	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.