Last year when I changed over from the 4L60E to the T5 I ran into a problem where my speedo would not read. Well I have tried everything I can think of from replacing the VSS sensor to checking conductivity and grounds through every wire in the system that comes to mind and I still can not figure out how to fix my speedometer. It reads 0 all the time, the trip and odometer do not move either. I originally tested on the original 4737 PCM from my car ( 94 auto) with no result. I have now tested the system running on Megasquirt. the VSS reads accurately on its 4k ppm. I have the out put set to feel the speedo the same 4k ppm signal but still no movement. Are there any suggestions to why this may be happening?
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