I have a 1988 Honda Prelude that currently gets about 33 MPG highway. I just recently attempted installing an MPGuino. I don't have much experience with electrical work so this is a fun project.
I have everything connected and working with the MPGuino except the VSS signal. A couple guides online indicate that the ECU B10 yellow/blue wire is a VSS signal. The MPGuino does not read a signal from this wire.
Something else online suggested using the ECU B16 wire, but the schematics says that is the crankshaft sensor ground. I tried it anyways. I got a signal but it definitely was not the VSS signal.
Since I can't get a VSS signal from the ECU wires I thought I should go direct to the source. I can't find the VSS sensor on the engine though. Here are some pictures of my engine.
My question for the Ecomodder experts, where should I get a VSS signal?