Missfire in 5th gear on boost?

[yellonvi-R]

Turbo kicks in fine through all the gears but when in 5th i get a slight missfire and the engine warning light (yellow triangle with !) flickers???

Its an 02 plate ibiza cupra 20vt

Was thinking coils but only happened today so not had chance to get it diagnosed!!

Any ideas welcome ;) p.s i had a little search but kids driving me mad!(

[cozmeister]

Make it happen again to see if there's a pattern. ;)

Is it only light throttle, full throttle, etc.

Spark plugs OK, etc?

[yellonvi-R]

Light and full! My battery plus was loose though so sorted that havn't had chance to try it yet though. Will look at the plugs the weekend if iget chance as im going to the btcc final round on sunday ;) so might not get chance!(