I think I may have a tach problem. Car has a new AMK products main underdash wiring harness "with tach" installed. Today I ran the wires to the tacho, pink wire to black plug on tacho and red wire to the red plug on tacho.This resulted in no voltage at coil. When we bypassed the revcounter we got power back at the coil.Testing with a multimeter shows no power is passing through the revcounter.
Does that sound like a "burnt out" tacho?
Are they repairable?
I would very much like to keep the original tacho so would prefer to repair if possible.
Thanks in advance as always.