usually 2 wires red to switched live ( live only when ignition is on, generally the yellow wire from ignition switch but check for urself) black goes to the negative connecter (-) on coil some tachometers have a switch for 4/6 or 8 cylinder engines make sure the correct one is selected
need to know how to hook up the wires on the engine on F-150 pick up to make a pro tach rpm gauge work
this question should be listed under dodge automobiles
why doesn't my rpm gauge and temp gauge, fuel gauge not work
The RPM gauge is connected to the same wiring on as all the lights on the dashboard. A faulty RPM gauge can be replaced but requires removing the whole dash from the vehicle.
while driving the rpm gauge work perfect, when start accelerating the rpm can not exceed 3 with interruption in the engine
Your engine is not running or your "RPM gauge" is broken.
rpm
Get to a shop quick.
2500
The 2007 Volkswagen Jetta's engine produces 150 hp @ 5000 rpm.
The 2013 Volkswagen GTI's engine produces 200 hp @ 5100 rpm.
The 2014 Volkswagen CC's engine produces 200 hp @ 5100 rpm.