OK banging my head agaqin... onething gets fixed another pops up.... I know its #4 cylinder misfire.... here is what I have done... cleaned TB, IAC, EGR, replaced plug and wire, swapped #4 & #6 fuel injectors... no change... didn't have a distributer cap... but I used an extention and stuck it up the wire and its got spark... anything anyone can think of??? and hoping I am right that the #4 is middle cylinder towards the front of the car.... thanks Rick

 

i can tell you off hand that yes #4 is the middle towards the front of the car. Have you ran seafoam through the system?

 

I'd say cap/rotor is next logical step .. just cause you see spark it might not be good spark ...

 

and Bad Venge wins... I just got back from PA...took a distributer cap and rotor along with a compression tester... cap was cracked and arcing... so just did the cap and rotor and told the stepson not to touch... hahahaha