1974 Models & 1975-76 280Z
Connect ohmmeter to EGR solenoid leads and check for continuity. If continuity does not exist, replace EGR solenoid. If continuity exists, connect EGR solenoid to battery. Make and break electrical connection while listening for a "clicking" sound. If clicks are heard, EGR solenoid is okay. If not, replace EGR solenoid.