Advanced VSS Th-350 Question
03-07-2007, 09:07 PM
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Staging Lane
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Advanced VSS Th-350 Question Hi, I have a 5.3 with a th-350 and am using an autometer electric speedometer. I purchased the GM autometer electric sender and wired it into the speedo and the instructions say for EFI applications to use the VSS out on the back of the gauge. There is only one pin for the VSS out on the speedo and the ECM has two wires: green and purple. Is this compatible? I do not want to change my tailshaft but have the option of using another speedometer-driven VSS sender becuase the autometer sender has an extra output for a speeo cable. I've searched but not have found much on this particular situation. 
