Hi folks For those interested I found the following site relating to the Bosch wideband sensor (LSU 4 series)
http://wbo2.com/lsu/lsu4.htm It says that Avgas 100LL contains 0.56 gm/litre lead and that the sensor will poison in about 200 hours....perhaps I should use automotive lead free fuel in my bird?? Wideband sensors are much more expensive than the more common narrow band ones but provide a much more accurate signal over a greater air/fuel ratio range. There are a heap of gauges at www.summitracing.com but most seem to rely on narrow band sensors. Cheapest I could find were the Cyberdyne CYB-7009 LED bar graph (like the older Intellitronix that Mark L shows) at $36-95 and sensor CYB-8941 at $59-95. John The Martindale Family 29 Jane Circuit TOORMINA NSW 2452 AUSTRALIA phone: 61 2 66584767 email: johnja...@optusnet.com.au
