The Cyberdyn O2 gauge item # 39004 on the Eckler's Corvette page is advertised to connect to the factory oxygen sensor. The factory oxygen sensors are usually narrow band units; this means the output goes from 0 to 1.0 volts full scale. The oxygen sensor that Mark Langford shows on his web site is a Bosch wide band sensor; the output goes from 0 to 5.0 volts full scale. The Cyberdyn O2 gauge has no provision to change the scale factor. You have to use a wide band O2 sensor (Bosch 11027 or equivalent) http://www.thepartsbin.com/catalog/?N=1732+4294966978+11852&Ntt=BS11027 with the Cyberdyn O2 gauge (Jegs 280-7009 or equivalent). http://www.jegs.com/webapp/wcs/stores/servlet/KeywordSearchCmd?storeId=1 0001&catalogId=10002&langId=-1&N=0&Ntt=280-7009&Ntk=all&Nty=1&D=280-7009 &Ntx=mode%2Bmatchall&Dx=mode%2Bmatchall&searchTerm=280-7009&x=20&y=10 Two factors to consider: All O2 sensors, either narrow band or wide band, are high impedance devices. The sensors are quite sensitive to loading by whatever meter is used to read the output voltage. A miss-matched meter and O2 sensor will not produce accurate reading results. The second factor is: The narrow band O2 sensors have a sharp transition in output going from full lean to full rich and back. This slam-bang output response is fine for a computer controller system making mixture changes at 5 to 10 times a second. No way can any human paw on a manual mixture control keep up with that narrow band response. The wide band O2 sensors have a smooth more linear response much more suitable for human control.
Sid Wood Tri-gear KR-2 N6242 Mechanicsville, MD, USA smw...@md.metrocast.net ------------------------------ Anybody ever found an O2 Gauge that can actually be seen in the cockpit in bright sunlight, like the standard pressure and temperature gauges? Try this. May be the same one Mark L uses, but it's from Eckler's Corvette http://www.ecklers.com/search.asp?action=freeSearch&free_text=mixture%20 guage&searchHistory= Michael J. Simpson mplane...@aol.com c:919-423-6190
