D21 Hardbody 4WD V6-2960cc 3.0L SOHC MFI (VG30E) (1991)
EGR Temperature Sensor: Component Tests and General Diagnostics
EGR Temperature Sensor Inspection
Immerse sensor in water at specified temperatures and check resistance with an ohm meter.
Resistance should be approximately 85 ohms at 100° C (212° F).
Resitance should decrease as temperature increases.
Replace the sensor if it fails the above test.