Possible Causes
WARNING: This page is about a different car, the 2003 Mazda B4000, 2003 Mazda B3000, and 2003 Mazda B2300. However, it is still accessible from the selected car via links, so may be relevant.
Possible causes are:
- Damaged EGRVR solenoid.
- Damaged PCM.
- EGRVR circuit shorted to GND.
- EGRVR circuit shorted to VPWR.
- Open EGRVR circuit.
- Open VPWR circuit to EGRVR solenoid.