P0431 Mazda
Warm Up Catalyst System LH Efficiency Below Threshold
Mazda
P0420 Mazda
Catalyst System Efficiency Below Threshold Bank 1
P0421 Mazda
Warm Up Catalyst System Right Efficiency Below Threshold
P0410 Mazda
Secondary Air Injection System Problem
P0411 Mazda
Secondary Air Injection System Incorrect Upstream Fow
P0405 Mazda
Exhaust Gas Recirculation Sensor ‘A’ Circuit Low
P0406 Mazda
Exhaust Gas Recirculation Sensor ‘A’ Circuit High
P0403 Mazda
Exhaust Gas Recirculation Valve Stepper Motor Circuit Malfunction
P0404 Mazda
Exhaust Gas Recirculation Control Circuit Range/Performance
P0401 Mazda
Exhaust Gas Recirculation Flow Insufficient Detected