JEEPLES...so I have a 2015 jk unlimited, the only engine mod is the K&N with less than 20 miles on it.

So to the issue, the jeep has roughly 60k on the od. Suddenly, let's say past few weeks i have been getting cel warnings, whats odd is it started with a misfire on #1 and some Light codes ( it has the aftermarket halo led lights and fogs also halo) so these are not new lights and have installed for roughly 3 years no issues.
Anyway whats odd is I ran seafoam thru a tank and the new cel is for #5. So I decided to check the pak and plug, plug definitely needed swapped so I also replaced the pak, drove her a bit and it ran like crap then fine, total of about 10miles stop and go and a few hills, straightend out and was running like new, the next day the wife called and it was throwing a new cel and running like crap, shaking etc halfway thru her 15min drive to work. The new code is now #5 injector circuit and obviously #5 misfire.
Doing my due diligence and researching this, I have to ask, has anyone just cleaned their injectors and ran them again or is it best to just replace them. Additionally I came across a video about a pin connection issue in the harness connector above the left bank that was causing some of the same issues.
I have also noticed on the maf sensor just behind the throttle body some sort of oily substance, I wiped it off reinstalled it, as well as cleaned the butterfly, it was pretty gunky.
I plan on doing all 6 plugs and coils, but man the price for injectors is frigging ridiculous. Any thoughts? I have multiple tut's on cleaning them, seems a cheaper route

Plug #5

Plug #5
. Thanks in advance.

 

So you'd think by now I would learn every time I work on a car, it turns out more difficult than thought.

So simple coil pak n plugs and injector turned out to be PVC and a valve cover gasket. Man the amount of crap that needs to be removed is just ungodly.
2 days and the valve cover and PVC have been corrected and all injectors removed.. had the misses working on her jeep as well.. lol after her manicure and nails, my wife is awesome.


So tonite I will be cleaning the injectors using a Schrader valve my power supply and carb cleaner. Also washing up the O-rings. I'll will post agian with how it all went.

Did notice some odd things, my oil level was too high, only the dealership changes it, also noted broken bolt points ( aircleaner tube to radiator mount) and not reconnected electrical connector, odd connector on the back of the block below and inboard of the PVC, one wire black w/ wht stripe, connects to a what looks like a small relay. Anyway only the dealership has done work on the jeep. Strange...looks like I'll be doing her oil changes from now on.

 

So cleaning injectors work, remove the o-rings and clean and or replace, find you tube thread for the simple DIY tool in order to do so, also the cleaner, do not use the high pressure carb cleaner as this will cause it all to come apart, and get in your eyeballs.....

I found 2 bad, one completely dead and the other after a bottle of cleaner the spray pattern never recovered. No-body had any on hand except for Napa way down in San Diego, so an hour drive and we got her back together and test drove it.. all good for now..

Recommendation, take a long weekend, remove both fenders and inner fenders, makes it way easier to get to the PCV and the two brackets. Not a fun job,, Also on the driver side the breather tube on the backside of the valve cover, id recomend adding clamps,, i had to take the whole intake off as the stupid tube came off while every thing was being put back, and no you can't get to it with the intake on.

Would not do agian, id like to meet the person who decided to put the pcv on the backside of the fricken valve cover.