18872/P2440/009280
From Ross-Tech Wiki
18872/P2440/009280 - Secondary Air Injection System Switching Valve Bank 1 : Stuck Open
Possible Symptoms
- Malfunction Indicator Light (MIL) ON
Possible Causes
- SAI pressure hose between the pump and the combi valve cracked
Possible Solutions
- Run Output Tests to run the Secondary Air Injection pump while wiggling the corrugated hose to listen/feel for leaks.