Secondary Air Injection System Air Flow/Pressure Sensor Circuit
The ECU detects a general fault in the secondary air injection system air flow or pressure sensor circuit. The diagnostic cannot verify proper SAI operation.
Affected components
- Sai pressure sensor
- Sai wiring
Common causes
- High likelihood: Defective SAI sensor
- Medium likelihood: SAI sensor wiring fault
Diagnostic notes
- The malfunction indicator lamp may illuminate
- This code can affect emissions
- A drive cycle may be required after repair
Sources
Diagnostic information is provided for reference only. Confirm the code with a compatible scan tool and follow the vehicle manufacturer's service procedures before replacing components.