My 52 plate, ~68k Jazz has been suffering with this hesitancy problem for a while now, thought it was probably the coil packs (£90 EACH
) until I found this thread. I've just finished cleaning it with some carb cleaner and touch wood it seems a lot better, hopefully this will ward off a new one for a while.
I did some research and it seems that the same EGR valve is used on the 03-05 and 06-11 Civic Hybrid, this was sold in the US and (surprise surprise) the part is a lot cheaper there, so this might be a good option if you do need to buy a new one.
For anyone who does have a go at cleaning their EGR valve the bit you need to work on is the round bit highlighted here:
Use a pair of needle nosed pliers to pull the round part in the recess up (be gentle with it) and spray some carb cleaner in to clean it up. This is the part that needs to move freely.
It's probably worth getting a new gasket in before tackling this as it is almost guaranteed that it'll get ruined when you take it off.