1993 Tachometer Cluster Swap

[Paul18181818]

I recently swapped my 1993 xlt rwd from automatic to manual and in the process, I installed an instrument cluster from a donor 93 that had a tachometer. I read somewhere that this should be a direct swap, however, the tachometer is not functioning at all. I tried tracing the tachometer wire but could not find any issues. Does anybody have any ideas?

 

[RonD]

Welcome to TRS

What engine is in your vehicle?

And do you know what engine was in the donor vehicle, not needed but might make it easier?

Its a tan/yellow stripe wire that will come from the coil OR ICM(ignition control module) depending on the engine model

 

[Paul18181818]

Oops, forgot to include that. Both my truck and the donor were 1993 2.3's.

 

[RonD]

On 1993 2.3l the ICM is on the front of lower intake manifold in engine bay, so fan blows on it to cool it off
It will have the tan/yellow stripe wire, pin 12, that's the Tach signal wire

That wire has spliced/split and goes to pin 4 on the computer and pin 8 on the cluster, both are tan/yellow
Its also labelled IDM signal in some diagrams, just FYI