I see where your thought is but he said he swapped injectors and that should have moved the fault to the other bank.

You do need to make sure the pressure holds power off. I would check the plugs for weeping injectors nonetheless. Maybe multiple injectors leaking and swapping them didn't isolate to one bank. I would do as suggested to keep fuel rail pressurised for an hour or two (turn key to on to charge fuel rail) then off, do that every 30 minutes for an hour (3 times) wait another 30 minutes and at 90 minutes pull all the plugs and look for wet plugs indicating injectors not closing completely.

If so, injector cleaner may clear the problem.


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2011 E70 • N55 (me)
2012 E70 • N63 (wife)