Help! 2012 Dodge Charger with 6.4l

I am working on a 2012 Dodge Charger with a 6.4l engine. It sets a P1411 cylinder 1 reactivation code. Before the code sets the car runs great. Usually you can clear the code and it will take about 2 miles to set. It will go in and out of ECO mode (V4) several times before it sets. Now it is setting immediately. I have replaced the solenoid for cyl one. The weird thing is when the code sets it gives battery voltage to that terminal in the 6 wire connector at the back of the driver side head. So it is activating the solenoid for cyl 1 only. The scan tool shows cyl 1 active and it turns off spark and fuel to the cylinder. The system works by powering up the solenoid to increase oil pressure to lifter to release lock pins and when solenoid is not powered the oil pressure drops and the pins engage and the lifter works.
I don't know if I have a mechanical issue or an electrical one. I can't find much info on it. I don't know why the pcm would power up just that solenoid. I removed the valve cover to look for a spring or cam issue and I don't see a problem there. I can apply power and ground to solenoid while cranking and see it disengage lifter and when power is turned off it works immediately. Because it turns off injector pulse and spark I can not just unplug it and see ot start working. If I put a compression gauge in it it reads good but turns off injector pulse. This was before it wouldn't release the solenoid. The solenoid won't have power on it until the engine actually starts and runs. I was concerned it was shorted to voltage so I ran a wire outside of the harness from pcm to the connector at the back of the head. I also replaced the PCM.
I don't know how to diagnose this problem. I don't even know what to look at. Initially I disconnected solenoids and drove the car and it had no misfires.
Thanks in advance for any help!

Think you can post the trouble chart for the code?? Code setting criteria etc

When all criteria has been met, power is supplied to each MDS Solenoid when the engine is making a transition from 8 cylinder mode to 4 cylinder mode. By actuating the solenoid, oil pressure is raised to the pair of lifters that coincide with each particular solenoid. The oil pressure pushes in the locking pins that allows the lifter to collapse, decoupling the valves and camshaft.
When Monitored: Transition from 4 to 8 cylinder mode.
Set Condition: The MDS fails to disengage for cylinder 1.
As of now I can clear the code but the mds solenoid for cyl 1 only is active as soon as the engine starts and inj and spark are turned off of cyl 1.
Flow chart says disconnect pcm connector and solenoid connector and check for voltage. There is none. It says check resistance of solenoid - in spec. It then says connect pcm and use scan tool to cycle solenoid. Test for signal with test light. Its there. It then says remove intake and plug in connector to solenoids, cycle with scan tool, does it click? It does. It then says remove solenoid and check for debris found none. It says replace solenoid. I did. It then says remove heads and inspect oil passages. I can cycle the lifters on and off by using my power probe on the solenoid. I just don't know why it shows the solenoid active and puts power on that circuit when none of the criteria are met. It happens as soon as engine starts and runs. It lists possible causes as solenoid shorted to voltage, oil passages restricted, bad lifter, bad solenoid or PCM.

So does the other one read active when cylinder 1 is a active?

Try a capacitor discharge I think Eric o of south main auto had something like that

Only cylinder one shows active in the bay.

The other thing is it is showing cam sync good and crank sync bad. There is only one cam and crank. Cam and crank difference show -0.1.
base spark is at -34 degrees. Crank system fault - false.

Can you post screenshots of data.

Wonder if the cam and crank signals are okay? Scope?

I have not scoped these yet. Plan is tomorrow after other work is done. I am surprised I don't get a code for one, and it starts ok. I'll update when that is done. Thanks for your interest.

Can you get cam crank waveform and see if the timing is off from a known good on Iatn or something

You replaced the #1 solenoid and the PCM, that suggests to me that its an electrical problem

I believe cylinders 1,7,4&6 are the cylinders used in the 4cyl mode. You were able to activate Cyl#1, try the same with 7,4&6. If they work then the problem is electrical. Its my understanding that their is a main MDS solenoid which controls the 4 solenoids. Trace back the wiring and look for a short. or a defective MDS solenoid.

many reports of the MDS solenoids wiring loom melted into the engine block below the intake manifold. appears to be a manufacturers bad design and poor insulation of the wiring loom.