Morning.
My bmw e60 520i with M54 engine smokes a lot when starting and when I accelerate and it starts to shake and loses power. I have passed the DIS and I get the following errors: DME-I have already changed the spark plugs
DME-274E Misfire at several cylindres - Damaging exhaust gas after sequence - Fault currently not present
DME-2746 Misfire, cylinder 2 - Damaging exhaust gas after sequence - Fault currently not present
DME-2744 Misfire, cylinder 3 - Damaging exhaust gas after sequence - Fault currently not present
DME-2742 Misfire, cylinder 1 - Damaging exhaust gas after sequence - Fault currently not present
DME-27C3 Thermal oil-level sensor - signal dropped - Fault currently not present
What could it be?
Coils?
Injectors?
Does it calculate CCV?
Do a smoke test to evaluate for any vacuum leaks first. Any unmetered air can cause that.
You may also have CCV issues or the vacuum leak inside there.
-Abel
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