Z750 Fuel Injection Warning Light (Fi)

[King Nicholas]

I have a problem and I want to find out how serious it may be.
I have a 2008 Z750 called Zoe.
She had her fuel injection (Fi) warning light come on the other day & I am concerned for her health.
She makes all of the same sounds she always does, no change there.
There is no noticable difference in performance of any type.
She is not leaking anything.
While at home she is covered but at work she has to brave the elements.
She is cleaned every weekend by hand.
She had a power commander 3 installed about 1500km ago.

What could the problem possibly be and will it be expensive?

and...

Should I:

a) Get the shop to pick it up?
b) Ride her straight to the shop?
c) Wait until her next service about 5000km away? (I commute about 15km/day Mon-Fri and ride every weekend.)
d) Forget about it?

Any advice would be handy!