Help!!!! 4.0 ohv missing like crazy

[Ryanrohauer]

Ok so I have a 94 ranger 4.0 ohv recently I have replaced the cat and y pipe because the old one fell off and replaced the y pipe because it was roached and now it is running like garbage cylinder 3 doesn't seem to be firing when i pull off the wire it dosent arch to my spark plug so i swiched wires amd 3 still aint firing i wana blame thr coil but its less then a year old also I have a small hole in my egr hose that goes from my ex. manifold to my egr sensor idk what's wrong I've replaced my IAT, COOLENT TEMP SENSOR EGR SENSOR AND CLEANED THE EGR VALVE,PLUGS, WIRES, COIL AN O2 sensor all throughout the short time I've had the truck my question is could this problem be caused by my leak in my egr hose the only MIL lights I'm getting is key off engine off 335-egr sensor voltage out of range and key on engine on 326-pressure feedback egr shows low pressure egr not seating or not seating intermittently. I'm at my witts end and I'm sick of this goddamn truck the god damn thing ran better dumped at the y pipes before I put the new cat on could this be do to increased back pressure and is choking up my engine I'm currently following up on my cylinder 3 no spark I jus don't know what to do

 

[downer]

temporarily block off the egr valve and see if it improves