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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.

Special Notes

  • For the Tiguan with the 2.0T DGUE engine that has one or more of the following fault codes, please see TSB 054615 for possible ECM update and hardware update.