[B1257]

Will try this too. Yesterday made cylinder balance too. (ista makes it after changing injectors) That part was done successfully.  I thought that this means that the cylinder does not have problem.
Can it be coil too?

Last time before the replacement of the injectors I wrote swap the coil pack between two cylinders and ckeck the misfire detection again. A higher misfire detection is always an uncontrolled or insuffizient combustion process, the results are among other things a higher engine roughness. Interesting also, what was the time when the misfire detection was set, I mean rpm and load of the engine itself (stastistics). I think the roughness on cyl 8 is still out of specification.