UPDATE: Hurrah, my "ecoOBD2" has arrived, and really I could not wait to try it !!
Sure enough when you plug it in and push the button the three coloured Leds flash (at random..): Great, I can't wait to save fuel either... !
Oh no, I opened it up and it actually just connects to the Eth. and Power pins... Hmmm, perhaps it uses 'magic' then ?
Even worse it seems to just have a 555 Timer chip within, although the designation on it was removed......
perhaps to stop folks plagiarising this amazing money-saving unit ??
but wait... on the 'instructions' it states:
"ecoOBD2 will recognise your vehicle and your driving habits, after around 200km/150miles driving and thus ecoOBD2 will adjust itself to match your car perfectly for more fuel saving "
- Ok some odd syntax in their text there but it's from China... but it has a CE mark. and RoHS, FCC marks etc..
So it must really work, right ?
Interestingly on the Customs Label it is described as a Scanner(SH-ELM004-1X)...
Difficult to tell though as the wording is small and it might actually say Scammer ?
Probably just as well then that I just planned to remove the PCB and use the box for a Plug-In Voltmeter instead then.... ?
'Nice' they provided the Worlds' Smallest Xmas Tree lights like this though.