missfire problem

[jamie_vtec]

already had a thread about this but was in early stages so didnt no what was up with it ......


so here goes , its a facelift ek4 and when the cars cool it doesnt have a missfire . when it heats up it starts to missfire on low revs but still pulls well through vtec and the high revs . checked the leads and plugs and everything seems fine , just dont want to waste money on parts till im pretty sure whats up , so if anyone has any input please share
cheers