Hi guys, I'm approaching the end of my tether with my 2004 M62 4.4. I've got multiple misfires on Bank 2... 5, 6, 7, & 8 I'm actually considering Breaking her... 😢

So far what's happened:
Car had a burst rear water hose fixed and replaced and filled the engine with Oil Stop Leak (big mistake), incidentally... I over filled her with oil ⚰️.

Then the mess started, Cam Cover Gasket Burst, covered the plugs and coils in oil, then the initial misfire of Cylinder 5 & 8 started due to being bathed in oil.

So far I've done:
✅Changed Spark plugs on Bank 2
✅Changed 4 Coil Packs on Bank 2
✅Changed the Cam Cover Gaskets
✅Smoke tested for leaks
✅Inspected the PCV & CCV all fine
✅Tested the coils and plugs for a spark
✅Dissembled the Cam Cover again and cleaned the VANOS

🔧 The only thing we can think of next is replacing the loom
Or
🔧 Cutting off the Catalytic Converter to find out if it's completely blocked making the exhaust gases go back into the engine causing the multiple misfires.

If anyone has any other input please let me know before I break her on the marketplace😂😭😭

Hi

i've had the same issues also on bank 2, mainly related to loose inlet cam bolts and the cam sensor wheel being loose. I've repaired all of this, but still no joy with starting. Anyone had anything similar?