No the injectors do not need programmed
Because you have a specific NOX fault DAVIE can not clear it ,the vehicle itself will clear the fault once it is happy that everything is ok …The dealer where being lazy and instead of repairing the fault and roadtesting it to confirm it was fixed …The programmed it out ,because DAVIE can’t clear it …There is nothing wrong with any parameters ,if the light comes on you still have a fault