Hi T-Vago!
I'd love to put MPGuino in Charlie, but since it's a common rail diesel it has like 4-5 squirts of fuel per stroke AFAIK. I need to make some tests how mpguino will work with such input. For now I'm using factory FE meter, but it's not reliable. First of all it shows FE only with speeds above 30km/h and second thing is that it shows about 0.5 l/100km lower consumption than it is for real. I like MPGuino way more than this french idea of FE meter