The kit is quite cheap at $15, comes from Jaycar as kit no. KC 5195, it uses the
EGO sensor as the reference and displays either a bar graph or dot graph
(depending on your preference) across 10 leds.
There is a later (and more comprehernsive) kit available, however unless your
engine is much modified and/or has adjustable mixture the expensive kit is not
likely to be a great deal better.
Note, you need fair skills in electronic soldering, the kit is simple, contains few
parts, and well documented, a socket is provided for the IC etc.
Regards Prof. Rabbit
Originally Posted by RedEF6
just wondering, how much did this kit cost you? and how does it display the fuel mix? does it read of the O2 sensor in the exhaust or something? would be interested as i believe my car is running rich.