FALUT CODE P0284

As above, this code pops up with monotonous regularity on my diesel VRS with CUNA 4 cylinder engine. Simultaneously the orange engine shaped warning light comes on. The code can be cleared using a basic OBD tool and I have noticed that its appearance can be prompted by a bit of spirited driving such as pulling out of a side turning into moving traffic.

I've looked this up using Dr Google and it tells me that No 8 injector is possibly, clogged, faulty, or there is a wiring fault. No 8? Is my diagnostic tool having me on?

There doesn't appear to be any noticeable power loss when it lights up - am I being a bit paranoid?