ok heres my problem i have a dx 4door stock motor d15b stupid duel point ok anyways i replaced the distibutor a while ago cause the ignitor was bad and it ran good now like 2 months later its running like it did when the ignitor was bad but the ecu says everything is good! so i dono what do you all think new distributor???

 

Ignitor could be bad again. It is not uncommon for new electrical parts to fail shortly after being installed like that (I've had it happen to me with ignition coils). Try taking the ignitor somewhere to see if it can be tested.

 

spit on each runnde ron your exhause manifold, if it dosen't evaporate thats the dead cylinder.