J2000/Sunbird V6-191 3.1L VIN T MFI (1994)
Tachometer: Description and Operation
The Tachometer displays engine speed in rpm. Voltage pulses are taken from the Ignition System and sent to the Tachometer. It responds to the
frequency of the voltage pulses which increase with engine speed. Solid state circuits process these pulses into a signal that drives the pointer of the
meter.