O2 sensor simlulator

[3Bar_Mopar]

This is a simple, adjustable circuit designed to mimic an the O2 sensor and could be useful with a wideband for drag racing.

http://www.bobblick.com/techref/proj...sim/o2sim.html

[shadow88]

Usefull? If the o2 is ignored above 75% throttle, how is this usefull?

I've seen a few used downstream on a few vipers that run without cats. They only use the ossilating (sp) part to keep the engine light off.

[XR Tuner]

Most widebands have a simulated O2 output.

[turbovanman²]

Its only useful if you have a rear ox sensor that your trying to trick or you want to say lean out your engine when cruising to trick the computer for max fuel economy.

As stated, at WOT, its ignored on our cars, thats why changes in fuel pressure make it rich or lean.

[shelbydave]

If you're in an emissions state that uses the tailpipe sniffer, you may be able to use something like this to trick the machine if you know that your setup is too rich at idle... maybe??

Disregard... If it's rich, the O2 is probably already trying to drive it as lean as possible. Never think while watching American Idol tryouts