Hello Joe,
phew, why is everything in this forum related to a failing IMS? Maybe i should move to the US and open a workshop or dealership. Would buy this trashy cars cheap, repair cheap and sell with big margin.
Cylinder 6, 2, 5, 1 are on different banks. So if there would be a timing issue, than all cylinders should do have misfire. Why only 4 of 6?
Some questions:
The engine didn't run well before you've changed coil packs and sparks?
Did the problem occur after you've changed sparks and coil packs?
What diagnose tool did you use to get the codes?
Did the car sit for a longer time before this problem happens?
Did the problem happen immediately when the car did run?
How do the spark s look?
Did you check oil and oil filter for debree?
Is it possible to check camshaft deviation or is the engine running so bad that you can't do it.
Does it only run bad at idle or higher revs?
Did you check if the camshaft adjustment works proper?
Could you provide us a video with the engine running?
Thanks and regards, Markus