Ok, little background, I'm running a turbo 4g63t(mitsu eclipse) engine in my truck with the 4g63t ECU also. Well I need to get the truck Smog Certified and there needs to be no check engine light/codes being put out. Well anyways the ECU is reporting a VSS(Vehicle Speed Sensor) code, but problem is the trucks don't really have a vehicle speed sensor in them(that I have found reading through my FACTORY SERVICE MANUAL, although the 4wd versions do seem to have one) to hook up to the Eclipse ECU. I was wondering if anyone here had some input on how I could send a signal to the ecu to simulate a VSS? I bought a gearbox probe that would supposedly simulate and send a signal to the ECU but it doesnt seem to be working as the code is still popping up.

Thanks for any help