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This is my engine harness had the whole thing out it must be in the body harness the wire for number 5 had no resistance I would hook meter up and shake wire around to see if it lost connection did it to all coil pack wires

Even if I get it to act up then check power or continuity it’s all working fine. If I reset code it runs good for 30 seconds. Check engine light comes back. Check for power or continuity when it’s messing up it comes up fine. When I picked it up from last mechanic it was missing then a...

I have all new coil packs new plugs I’ve even moved them around. I moved the injectors around it always stays at cylinder 5. I removed engine harness completely took shielding off inspected it ohmed it all out couldn’t find any problems. I’m replaced the pcm and the ticm fuse box. It has...

Dealership is probably where it’s going next. Mine a 13 jku sport. Waiting to hear back from key place because it literally happened on the way home took me awhile to remember it was that close

I’ve done 2 new pcm ticm fuse box coil packs plugs taken valve cover off to inspect springs and rockers compressoin test at 160 psi. Removed wire harness and ohmed out the whole thing still the same problem

It meant to say it started the day I got new keys made

I’m still fighting mine too. I’ve stumped 2 mechanics. I just realized it happened the day after I got new keys made going to try reflashing the keys. If not I’m going to try local dealer.

Previous owner had a motor put in mine guy did a hack job as far as I can tell so mine could not all be In correct place that evap peice was sitting next to my battery

I can’t find that small hose location but what I’m pointing to is where that hose you’re looking for goes. If you have vacuum leaks that can lead to misfires too. As you can tell I’m doing the same thing you are. Think my misfires fixed but I’m trying to figure out why I get a cat...

Push this part in then slide the gray part torewards front of Jeep

Pull the red pin the torwards passanger side push the notched out bottom part and the whole gray part slides foreword and it comes apart

That’s the one

I used brake cleaner and compressed air. But for the corroded pin I had to pull the white female pin cover offf and scrape it clean with a tiny file just on the corroded pin hole. Then I put dielectric greese on it to prevent more corroding

Mine was running great changed all coil packs and plugs. Was running great then the computer shut down cylinder 5 I work 30 miles from work so wife picked me up with truck and car trailer. It’s probably in your wiring take that flat plug on intake manifold apart and check pins for corrosion

Have you tried changing that coil pack with one next to it.

Which codes which codes the cat codes? I found my misfire conector for coil pack on number 5 and one pin in harness on passanger side conector corroded. Am fixing that tonight then I’ll be checking o2 wires with voltmeter. I’ll post what I find

Stock replacement cats. They are off eBay but bought from a Canadian seller not China and it’s throwing exact same codes with all the changes. I’m more worried about the misfire now. The computer thinks it has one so it’s shutting #5 down.

Did you ever figure it out I’m having the same problem with a 13 jku. P2314 and p0305b. Also has po420 and po430 for cats. I have replaced coil packs spark plugs and catalytic converters. My pcm is also runs hot. I changed my asd relay and it runs better temporarily