1986 Fiero 4-Speed
I have an after market tach that does not work. I notice that a purple wire that looks like the signal wire runs from the tach to the connector. On the other side of that purple wire on the tach side of the connector, there is no wire connected to the connector. I have three wires that fit in that style connector in the area of the dash. One green, one brown with black stripe, the third wire is solid brown (light brown). Can I get some assistance in identifying the correct wires that operate the tach? Thanks
