Where can I find a picture diagram for timing marks for a 08 Kia Sorrento LX 3.3

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The mil light is still on after replacing cam sensors crank sensors and both oil control valves. Still comes up with code P0016. also changed oil and filter 2x and motor flush. Car runs good. Haynes manual has little to non info for chain replacement and VVT. MIL Light will go out but code still exists then will come back on.