Tach Fixer allows you to see engine speed on Subaru EJ engines so you don't have to modify your Vanagon Tach. It's small enough to mount in the Black Box or near your Subaru ECU.
Simple Wiring: Tach IN, Tach OUT, Switched 12v power, ground
For 1986+ Vanagons - Earlier tachs work directly with the Subaru Tach wire.
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