DTC codes / Mazda codes / P1416
P1416 on Mazda vehicles indicates a fault in the port air circuit, which is part of the secondary air injection system that helps reduce exhaust emissions during cold starts. The powertrain control module (PCM) monitors the circuit for expected electrical behavior and sets this code when it detects an open, short, or out-of-range condition in the port air solenoid or its wiring.
Guidance is general and written for Mazda vehicles. Exact tests and values vary by model, so confirm the fault before replacing parts.
Get the app
Quick access from your home screen.