Subject: 1992 Mitsubishi Diamante (V6-Dual Overhead Cam, 24 valves)
Question: Where is the EGR valve sensor located?
Answer: Wilfredo,
Typically, the sensor is located in the car's computer itself. There is a solenoid that controls the valve, and that is typically located on the firewall, on the driver's side. But from my own knowledge, I'm not exactly sure if there's a seperate EGR sensor outside of the car's computer.
Good luck!