What are wires for?
12-10-2006, 03:35 PM
#1
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Car: 89 IROC Z28
Engine: 357 TPI
Transmission: 700R4
Axle/Gears: 3.42 Posi
What are wires for?
I have an 89 IROC with 115mph speedometer (mechanical). There is an electrical connection on the back that goes from the speedometer to small yellow box/connector that goes to the main electrical connector on the tach side of the instrument cluster. I was wondering if anyone knows what this is for?
12-10-2006, 04:00 PM
#2
That's the VSS buffer. There's a spinning bar and an IR R/T cluster that is part of the speedometer. The VSS buffer converts that signal into something the ECM can use. Basically it's the link between your speedometer and the computer.
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