08 Ford Fusion. Check engine Code po410 po491. Replace diverter valve 

So interesting

Awesome diagnosis

In CA smog will not allow bypass. To rule in/out Smog Pump or Relay, it will only come on for a few seconds, and only on a cold start (not warm). Disconnect the intake hose at the front of the check valve, cold- start, and the pump should come on for a few seconds. Also, careful with brittle vacuum lines, check for any leaks triggering codes & CEL. For 2.3L the parts are: Secondary Air Injection Check Valve 6S43-9F491-AA Relay F808B-14B192-AA Solenoid 6L34-9H465-BA

Came over from Weird Beard

GREAT VIDEO THANK YUO FOR YOU TIME

Good info

I super appreciate you putting up this video. I feel this might be the issue with my fusion although I completely understand the process in which you’ve done to fix your car but I don’t think that you said where you got the check valve from I’ve been looking all over for it around my town and nobody carries it. Is there a chance you can shoot me a message and let me know exactly where what when and how you got that check valve

What is the part number or name of the diverter

Hello WMR I have the same two codes coming up (P0491 and Po410) on my 2008 2.3 ford fusion. Can you tell me what the two parts you used to bypass the diverter valve are? You said you went to ace hardware for one of the parts and what auto parts store did you get the other piece? Thanks for posting the video.

I love it. Could you tell use what the vale came from? Parts people no longer can just match or use the Buyers Guide to select parts. Read everything here don't see a part # or original application. I am guessing at a old Ford?

What do you do with the third little dangaly bit that attaches to to top of the original secondary pump

How can I tell if the pump works I’m having the same codes?

Get another one and fix her