Oldsmobile Intrigue secondary air injection system pump failure preventing inspection pass on Oldsmobile Intrigue

Some Oldsmobile Intrigue owners report experiencing secondary air injection system pump failures that hinder their ability to pass vehicle inspections. These issues are often associated with fault codes such as P0410 and P0491, indicating insufficient flow or system failure. To resolve the pump failure, owners should conduct a thorough inspection of the air pump, air pump relay, and related wiring. Utilizing a scan tool can aid in monitoring system operation and identifying the specific cause of the failure. Additionally, moisture entering the air injection system may necessitate the replacement of one or both solenoid valves on the exhaust manifolds. To prevent future moisture-related problems, some owners consider upgrading to a kit for the air pump intake. Since the PCM controls critical components like the air pump relay and the air combination valve vacuum control solenoid circuit, addressing these areas is essential for restoring the functionality of the secondary air injection system.