Tachometer

[Jets1992]

Need instructions to wire in a tachometer on a 1996 Lincoln Town Car please

 

[jkeaton]

Is it a factory tach? Aftermarket? If aftermarket, did it not come with wiring diagrams/instructions?

 

[Jets1992]

Is it a factory tach? Aftermarket? If aftermarket, did it not come with wiring diagrams/instructions?

Aftermarket tach, universal fit. No specific wiring instructions.

 

[Jets1992]

Aftermarket tach, universal fit. No specific wiring instructions.

Correction, there is an instruction for power, ground, light power and tach impulse. Which wire is tach impulse?

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[Action]

Usually the tach impulse would be connected to the ignition coil distributor side of a traditional ignition system from the 1980s and earlier.

The problem for a 1996 Lincoln is it has a coil pack which will not work. There is no distributor.
I have heard of connecting to an alternator. But that was a marine application.

The data (Engine RPM) is data that is known in the electronic engine control system.

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[Norms1stTC]

Correction, there is an instruction for power, ground, light power and tach impulse. Which wire is tach impulse?

If you have COPS, I think you'll need a tach adapter,but I'm not positive on this . This has to do with converting the signal to a different wave so the tach can understand and read it.

 

[Action]

Model year 1996 still used the two ignition coil blocks for the 4.6l engine.
COPS was a few years off.
And still some type of adapter would be needed.
Or a way to tap into the crankshaft sensor without causing signal issues to the PCM.

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