Hello,
My fiance's 2006 GP 3.8L has had DTC P2440 (Secondary Air Injection System Switching Valve Stuck Open Bank 1) on in her car for nearly four year. It was never an issue when she lived in Michigan but has moved to Pennsylvania and needs to pass emissions inspection. When the code first came threw, her mechanic replaced the pump and diverter valve with aftermarket parts. I have since replaced the valve and pump with AC Delco, the relay and checked all of the plumbing. I also checked the wiring and found no issues with the wiring from the 5-pin connector on the valve to the PCU (continuity with a multimeter) and it is getting the 12v it should.
I have scoured the internet extensively and can not seem to find anyone who is still having the issue. Does anyone have any ideas or tips? I am reluctant to take it to the dealership but fear I will have to.
Thank you all!
Edel
