Had an 07 F150 with codes P0340 and P0344. Bank one cam sensor circuit fault. Previous experience with this type of code on a Ford product tells me this is not a circuit problem but timing issue. Before beginning work I took a screen shot of the Cam Crank sync. After tear down I discovered the right bank timing chain guide broken. Replaced the timing components and toke another screen shot of the Cam Crank sync. Not sure if the broken guide caused the sync issue on its own or if the chain jumped but you can see the cam signal lagging behind in the first screen shot. All good now.
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