D21 Hardbody 2WD V6-2960cc 3.0L SOHC MFI (VG30E) (1991)
EGR Valve: Component Tests and General Diagnostics
EGR Valve Test
EXHAUST GAS RECIRCULATION VALVE
Apply vacuum to fitting on valve. Replace valve if the diaphragm does not hold vacuum or valve spring does not lift replace valve.
Fig. 46 Solenoid Test
EGR SOLENOID FUNCTION TEST
Apply voltage to the solenoid terminals and check air passages for continuity as shown above. If continuity does not exist replace solenoid.
CAUTION:Reversing polarity will damage the solenoid.