E39 misfire cyl 2,3,5
My 99 528i started misfiring oncylinder l 2,3,5. Obviously engine ran rough. Turning off then on cleared problem, but not CEL. Replaced coils, plugs, and got injectors off and cleaned. Took car out same cyl misfire. Works good after clearing fault, but pops up again. Is this a DME or ECU problem? Or a vacuum leak. Really don't want to invest a lot of cash. Got 250000 miles on it, stll a great car.