On what cylinders do you have new injectors?
And are the new injectors with stainless filters or plastics?
I replaced 4 injectors before I realized that the only problem with the original ones were the plastic filters causing misfires as they degrade.
So I now run on original 2006 injectors on 6 of the cylinders with no problems ( I removed what was left of the filters)
Car is nearly at 250.000 km