How to address P0660 code and location of these valves/plugs, etc
 

Anyone got pictures or diagrams as to where I wouid look for these on the motor? Is there 1 or 6? Amazingly very little information about this scenario on the net or in the forum.
Thanks in advance. This code popped without a CEL when I ran a Dura scan over the weekend. I have felt the car has not been as responsive as it should be for a long time but just lived with it. This has a 3.6L conversion with a Softronic tune. No oil, no smoke, starts right up, averages 22-24MPG with a heavy foot. Car lives at 7500'. Scott (Softronic) no longer supports this tune in the configuration I had as a computer file, so I cannot reload tune to ensure that it is still 100% good. Nor do I know how to interpret the parameters that the durametric provides when I am connected. Anyone with baselines that are willing to share would be awesome.
Thanks in advance. I am long time P-car guy...

P0660 is the code for the intake manifold changeover flap on bank #1; usually a wiring issue or the solenoid itself. .