digital coolant temp gauge
 

Quick question:

Am I able to get one of these and hook it up to the coolant temp on my ecm?

Summit SUM-G2984 - Summit® Digital Gauges – SummitRacing.com

Or will I need to run a separate sending unit for this gauge?

Hard to say. Might use it's own sending unit. You could do this with a modified mpguino.

Maybe someday I will have spent more time and money building gauges for oil and water temps and air/fuel ratio... in the end maybe its better to get a scangauge... boo...