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Old 03-03-2012, 03:27 PM   #6 (permalink)
bestclimb
Smeghead
 
Join Date: Oct 2009
Location: South Central AK
Posts: 933

escort - '99 ford escort sport
90 day: 42.38 mpg (US)

scoobaru - '02 Subaru Forester s
90 day: 28.65 mpg (US)
Thanks: 32
Thanked 145 Times in 97 Posts
Yes it works on OBD1. It directly monitors Fuel injection and vehicle speed sensors and calculates consumption directly from that. I got my VSS signal from the back of the cluster, the injector signal from a wire at the computer (I vaguely remember it being a brown one but there was a diagram somewhere on the interwebs) and the 12v + and ground from the clock.
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