Real time mpg readout with pre OBD2 Nissans..
 

I've been looking for a real time mpg readout for our 94 Nissan Altima, which has the Nissan Consult system that was used from 1990 to 1999 or so.. Car does not have OBD2 so a ScanGauge won't work..

Well, I found the setup today..

Combine this RS232 cable on ebay..

https://tinyurl.com/68xd3a

With ECUTALK freeware (donationware) software running on a laptop or pocket pc and voila' instant real time mpg readout..

https://www.ecutalk.com/ecutalk.aspx

Hope this helps someone..