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Old 04-12-2017, 06:05 PM   #1
davepl
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Join Date: Aug 2006
Location: Redmond, WA
Posts: 6,334
LS3+6L90E speedometer

I'm trying to figure out the difference between the two speed sensor settings in HPTuners as I try to assist someone in getting a speedometer to work with an LS3-6L90E combo.

Under Hardware, it says:

>> Speed Output Type: VehRepTOS

Then, under Vehicle Speed Sensor, it says:

>> VSS Output: Disabled

First off, can anyone tell me the difference between "Speed Output" and "Vehicle Speed Output"?


I assume one is Transmission -> ECM communication and the other (second one) is ECM -> World and that this is what should be connected to the aftermarket speedo. But I don't want to just enable and wire it without understanding!

Thanks,
Dave
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1970 GMC Sierra Grande Custom Camper - Built, not Bought
1969 Pontiac 2+2 427/390 4-speed Coupe
1969 Pontiac 2+2 427/390 4-speed Convertible
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