It could just be the injector plug, I've had that happen. Lube it up with some dielectric grease and see if that fixes it. Mine did it on cylinder #3.

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05 Liberty Limited CRD, converted to KPA 2863 ball bearing and billet turbo, 50hp injectorsl, complete egr delete, cooling fan delete, weeks intake kit, cummins in tank lift pump, ARP studs, 3" turbo back exhaust, samcos, etecno plugs, GDE trans tune, custom GDE engine tune.

Thank you for the feedback. To be honest, I will do almost anything to keep from pulling that #4 injector (Twice already) Its hard to get to and even harder to re-install. I'm on the edge of taking it somewhere except I can't find anyone who works on these (Dealers are of no use and cost too much) and my time is so limited I would like to start driving this again.
I have read where other have had this some issue and it turned out to be a rocker problem. Could that be my issue and if so, what goes into this replacement? Thanks!!

EDIT-Code P304 says a #4 misfire-This does mean the #4 injector that's against the fire wall, correct? Not the #4 regarding firing order...Did I perhaps pull the wrong injector?

Ken

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2006 CRD
2.5 Frankenlift,ARB front bumper with internal winch.snorkel soon to have rock lizard bumper, sliders and roof rails, 2nd gen filter head
GDE eco tune-need trans upgrade and new TC
Beaverton Oregon

Anyone have any other suggestions from my last post?

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2006 CRD
2.5 Frankenlift,ARB front bumper with internal winch.snorkel soon to have rock lizard bumper, sliders and roof rails, 2nd gen filter head
GDE eco tune-need trans upgrade and new TC
Beaverton Oregon