EGR Vacuum Regulator Solenoid
WARNING: This page is about a different car, the 2002 Mazda Tribute, 2002 Mazda B4000, 2002 Mazda B3000, and 2002 Mazda B2300. However, it is still accessible from the selected car via links, so may be relevant.
Turn ignition switch off. Disconnect EGR Vacuum Regulator (EGRVR) solenoid wiring harness connector. Measure resistance between EGRVR solenoid terminals. If resistance is not 26-40 ohms, replace EGRVR solenoid. For additional EGR system testing, go to appropriate SELF-DIAGNOSTICS article.