Tach signal wire is located at the PCM near the connector. Use the manual should there be need for help in locating it.
Tachometer Filter Tach Wire Plug Connector ON A 1979 TRANS AM
where is the tach wire en Toyota tacoma 1999 4 cilinders
green wire on aftermarket tachs are the signal wire i belive
tach signal wire is a blue wire with a black cap that ends on the top of the strut tower near the firewall...done
Tach is driven by a motor signal, speedo is from the trans the sensor is bad on the transmission
The instructions will come with the new tach.
pin 48 on the pcm connecter is tach signal connect to your green wire from tach
From a crankshaft speed/position sensor.
You should be able to use the power side of Injector #1 for the tach signal
If your car has a distributor it is the negative on the coil.
are you talking about a sm. block hei. dist. if so there are 2 spade connectors on the side of the cap , one says tach. The tach signal comes from the negative side of the coil.