Oxygen sensor

[Barry Tisdale]

Put together the oxy sensor bargraph display discribed elsewhere here, and am puzzled @ the display.

At moderate & heavy accelleration, indicates about 800-900mv, holding steady; @ cruise, or any part-throttle condition, bops back & forth from  <100mv to about 600, nice & regular.  This checks w/ scantool reports.

Question: is the O2 sensor involved in moment-to-moment injector decisions, or just to activate a trouble code should things get seriously awry?

Would a capacitor/resistor combo to integrate the input to the 3914 yeild any meaningful info @ cruise?  Cute display, but for what?  Or is something broke on my vehicle??

Thanks - Barry