Miss fire at high revs

[Dan_172cup]

Hello all,

I have got a miss fire at high revs has seemed to get worse n worse.

I changed the plugs, coil pack and leads today but still no gd. Some times it don't do it though :-(.

Any ideas??

 

[Mr bean]

could be tdc sensor breaking down at high rpm ??

 

[MicKPM]

Not likely to be TDC - What plugs did you fit?