Severity: Fix soon. Usually safe to drive for now.
The system that pumps fresh air into the exhaust on cold starts to help the catalytic converter warm up is not working as the computer expects.
Check the fuse, relay, and hoses, then test the pump and the check valve.
Safe to drive. It mainly affects cold-start emissions, not how the car runs.
Generally safe to drive, but get it checked soon. Safe to drive. It mainly affects cold-start emissions, not how the car runs.
The most common causes are: Failed air pump; Failed check valve; Damaged air hoses; Failed air injection relay or solenoid; Blown fuse. A scan tool and a visual check of the parts above is where a technician starts.
Check the fuse, relay, and hoses, then test the pump and the check valve.
