P1406 — Mazda — DPFE Sensor Downstream Hose Off Or Plugged

P1406 (Mazda): DPFE Sensor Downstream Hose Off Or Plugged — what it means, the affected system and what to check before replacing parts.

Meaning, symptoms, causes and checks

DPFE Sensor Downstream Hose Off Or Plugged. Source catalogue definition; confirm applicability using vehicle service information.

Affected system: Powertrain