No start

P0016 - Cam and Crank correlation out of specification. This code is a PIA at times. It basically says that the camshaft and crank are out of time with each other but that difference can be very small. It usually is not a bad sensor as the computer uses those to determine if the code should be set.

In this case check the camshaft adjustment valve. (Adjuster for the cam timing) Be sure it has power first, battery voltage key on. Then unplug it and check the resistance across the terminals (5-9 ohms) if not in spec replace valve. If you have proper voltage at valve, proper resistance across terminals and good ground. Test the signal wire from the ECM to the control valve, 1 ohm or less resistance in that wire. If that all checks out the ECM has a fault.

A good scan tool to actually look at what the computer sees and even better a scope and known good waveform would tell you a lot.

Right on the front of the engine and it could shut down the engine if the difference is high enough.

The camshaft timing valve is a solenoid that controls the cam timing. If it goes out of whack the cam timing will be way off. The engine doesn't run because the cam and crank are way out of time. Some will run if they are bad others won't.
Run the tests on it and see if it's bad.

The solenoid that controls the oil is the part that changes the cam timing and the phasing with the crank. If it is bad it will throw the cam timing off, which is why the marks don't seem to be correct. It is the part that you test to be sure it is actually changing the cam timing. The ECM looks at the cam position relative to the crank. If the cam is supposed to be fully advanced at a certain point relative to the crankshaft but that valve isn't working, you get the P0016 code.

There is a TSB on that code as well - Basically says to test the control part first, then if it is OK to check the cam timing because of timing tensioner failure.

TSB 15-12-01

To test ohms - Set meter to ohms. Touch the probes to the contacts on the valve. Read what the meter says in ohms. 5-9 ohms is good. Lower or higher is bad.

Timing marks are not line up marks. They line up with colored links on the chain. Like the attached image. Find the colored links and line them up with the marks on the cams and crank.

Above should read "Timing marks are not line up with block markings".

The marks will line up but it may take a few turns of the crank to bring them back in line. There is a way to check by measuring the marks.
Rotate the crank in running direction until the mark on the dampener lines up with the mark on the lower timing chain cover. Then measure the dimensions in the drawings. Each tooth "off" from correct = 6mm difference.

Sounds like the control solenoid is bad. The readings shouldn't bounce around, it's only a long coil of wire inside.