Does anyone know what type of input the gas powered 70 series tachometers use? I've discovered that the factory tach in my LJ78 uses a magnetic impulse type signal that isn't compatible with the square wave type signal generated by my VW ECU. I know that the tachometers in 1st and 2nd generation 4Runners and Pickups are pretty much plug and play with the VW signal, and was thinking that maybe the FJ7x or RJ7x tachometers might work too, and fit in my dash.
Do they just receive their signal from the coil like a conventional older tachometer? 4 or 6 cylinder shouldn't be an issue, as I can correct the input with a resistor or potentiometer to match the engine.
Do they just receive their signal from the coil like a conventional older tachometer? 4 or 6 cylinder shouldn't be an issue, as I can correct the input with a resistor or potentiometer to match the engine.