Hi, my name is ***** ***** you for asking your question, I will try and help you out.
All the gages that are not working get their information from the engine ecm. Same as the Data link. So the issues are related.
Check all the two wire connections from engine ecm to firewall pass through connectors,,as that is where most of the issues end up being,,remove each one one at a time and inspect for corrosion,,loose/bent pins,,repair as needed. Check both ends at ecm and cab.
If no problems found I need engine info please,make ,model,serial numbers.
IF you need more on this please get back to me as all follow ups are included in our fee.