Yes, the engine is still missing and missing badly. Too tired last night to swap coils around after the wife finished with me for Christmas decorating. I'll try to set up the logging for the after-cat O2 and maybe swap coils around tonight.

I'll look for injector wiring concerns while I am in there. I haven't seen any signs of water running down from the cowl, but hey, I don't want to rule out anything - unless I [I]can[I] rule it out. Remember the plugs were run like that for at least 3+ hours from Baton Rouge to the eastern shore of Mobile Bay, at highway speed, so that might have washed them clean & white.

I had a Chevy engine once which, along with many other vehicles in the area, got exposed to a tank of bad gas (confirmed by the supplier). It was a pushrod operated valve design. The bad fuel had a tar or gum forming tendency which created enough resistance that the pushrods bent inside the engine. Multiple valves then not opening, with "skips" or misfires. I don't know the insides of these engines but given the sudden onset of the problem it does make me wonder if something similar could have happened here.

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2009 X5 3.0
2001 X5 4.4 - Sold