tacho wiring in carbureted 1993 galant

[RSS]

Hi,
I'm working on a 1993 galant with carbureted version of 7 bolt 4g63, I'm trying to use an stand alone ECU to run injector system. I know gauge cluster use distributor for tacho gauge, distributor has 3 wires 2 of them have 12 v and other GND. I need to know which wire is used to run RPM gauge in gauge cluster.
Any info?

 

[steve]

On DSMs there are two different ways the gauge cluster tach is connected. The most common is to the tach output of the Power Transistor Module. It's used on the 91-99 4G63 DOHC DSMs. The original 90 DSM's used a tach gate that was attached to the Coil Pack and fed through a noise filter to the cluster.

None of the DSMs used a distributor with a 4G63 only with the 1.8L 4G37 in the base 1G NA cars. Those used a single coil and fed it's switching by the power transistor through a filter to the cluster. That's pretty much how the Galant SOHC 4G63s do it.

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[RSS]

I need to run RPM gauge using my new ECU, it has tacho out put, How to wire it to gauge cluster?
I think I don't need noise filter

 

[steve]

Not sure what your asking. Do you need the pinout of the cluster to know where the input for the tach is?

 

[1990TSIAWDTALON]

If the Galant is anything like it's DSM cousin, the back of the instrument cluster will be marked for the tach +.

 

[RSS]

Not sure what your asking. Do you need the pinout of the cluster to know where the input for the tach is?

My stand alone ECU has tacho out put, I wanna use it to run RPM gauge in cluster, How I should wire it?

If the Galant is anything like it's DSM cousin, the back of the instrument cluster will be marked for the tach +.

Can I directly wire ECU tacho out put to run RPM gauge?

 

[1990TSIAWDTALON]

If the cluster has a marked post I would try it but as a test only.