I have read about "chips" and the like which apparently take the signal from your map sensor and TPS, and alter the signal fed to the ECU to richen up the AFR and advance the ignition.

I was wondering if the same idea would work by electrically modifying the oxygen sensor...

-After the OS reaches operating temp(600 F) it will read .1 volts for very lean up to .9 volts for very rich.
-Depending on your AFR needs you could install a resistor that would apropriately lower the voltage sent to the ECU by a set amount, thus allowing completely normal operation of the stock ECU and OS, but making the whole system think it is lean, increasing fuel to the AFR.
-This could work on mostly stock accords to effectively lower the AFR from 14.7 to 1, to a more reasonable 14 to 1 for instance.
-perhaps even a toggle adjuster could be used in the cabin to toggle up and down the resistance applied to the signal from the OS, making adjustment possible on the fly.

Shoot some holes in this idea please
sohc

 

So... what would you like to do with the oxygen sensor?!

 

In a nut shell, you change the electrical output from the oxygen sensor so the car thinks its lean and ups the fuel...