DIY Lambda for engine tuning... Mar 23, 2004 8:17:47 GMT -5 Quote Select PostDeselect PostLink to PostMemberGive GiftBack to Top Post by Rob Bell on Mar 23, 2004 8:17:47 GMT -5 Carl's inspired DIY Lambda in a cat bypass tube has lead me to this web page: www.pelicanparts.com/techarticles/mult_air_fuel_monitor/mult_air_fuel_monitor.htmOkay, you wouldn't build it into a dash, but there is no reason why you couldn't send the data to a ADC and into a laptop - could be ideal for setting up fuel pressure regulators or engine management systems!