You say I forced the VVTs, but all I did was turn them in the same way as the cam belt turns them Or have I missed the point?
Look at them again:
the VVTs are bolted to the cams
The belt pulleys are attached to the VVTs, and move in relation to them.
You used the centre bolt to turn the VVTs, when you should have turned the
pulleys or the actual camshaft. This will have changed the relationship between the pulley and the VVTs, and is what the ECU is flagging with the fault codes. It may have buggered the mechs too; considering that pattern parts for these are readily and cheaply available because they get very noisy, I would think it likely. This mechanism changes the valve timing between the crank and the cams, so if you get it wrong, or mistime it from the start you can end up with dramatically incorrect valve timing - easily as much as several teeth out.
You normally and sensibly ask questions when you find systems that are new to you, yet didn't in this case. That seems rather out of character.