Yup. I'm pretty sure that switching clusters isn't gonna serve you any purpose.

The ECU is the "engine controll unit"

No where does it connect to any componet in the dash.

I have pulled the harness out at least 4 times and I never once saw any evidence that makes me belive that it would be connected to the guage cluster. The wires go throug the firewall and into the engine bay.

I assume that the odometer has some type of on board memory.



Next time I have mine out Ill put this other one I have in to see.

you're right



the mileage is stored in the odometer itself, and has nothing to do with the ECU. if the ECU controlled the odometer memory, wouldn't everyones mileage change when they go PFC?

That is right. The odometer has like a chip that stores the memory for the mileage. I was told that they could reset it but it is going to cost like $300 to have it done. That is why I am looking for someone that has an automatic that plans on not selling it with about 85k miles on there odometer. So we can just trade cluster gauges.