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No. I ended up taking it to a buddy of mine thats a mechanic. He looked at it. Hooked it up to his good computer. Said it needs a good tune up (which its never had in 3 years ive had it). So hes gonna take care of it next week.

So....disconnected everything again, checked to make sure everything is good and tight. Left the battery disconnected for a few hours. Connected the battery. Now the 2097 code is gone. Went to drive it and the CEL blinked on me a couple of times and then disappeared. Then it came back on and is...

Good thinking. At least Im back to sqaure one. Haha

Ok....so disconnected the battery for the past 4 hours. The previous code went away. And back to No. 3 misfiring. So now im going to take that one back out and make sure everything is tight like you said.

That being said....do you think if I disconnected the battery for a few hours and let the computer reset again now that it has gas in it and then drive it that that will correct the issue? And thanks for all your help by the way. I appreciate it.

Check engine light came on. No codes on the dash. Had a computer hooked up to it and showed #3 cylinder needed a new plug and ignition coil. It was way low on gas when I did all this. No check engine light until I ran up to the gas station and got gas after I got done. As soon as I got gas and...

I do notice its not running exactly right but I read that thats normal in the relearning process.

Just worried me when the check engine light started flashing at me. Never had that happen before.

So the O2 sensor could be throwing a false code due to the computer still relearning?

So now....it is throwing a p2097 code and the check engine light is flashing. Its not idling rough, it seems to be running ok. Thoughts?

Will do. Thanks

Gotcha. Thanks for your help

Thats what I was told by a friend of mine to just drive it. That since I had the battery disconnected for a couple of hours that the stuff that was in the ecm may not be the same now. Does that sound about right? Im just now learning how to work on things on this jeep since the warranty ran out...

How do I do that?

So I changed the ignition coils and spark plugs in my 2012 Unlimited Sport today. I put everything back together but forgot one vacuum hose and started the jeep. I realized what I did and turned it off and reconnected the hose. Now I have an O2 sensor thats saying theres too much fuel in the...

Its coming from somewhere up there but it only does it when the AC is on. As soon as you turn the AC off it immediately stops.

No I haven't. Jeep runs fine with the AC on, just has that whining noise.

Making a whining noise when accelerating with AC on. Immediately stops when you turn the AC off. Dealership says its a pulley. Im not convinced. Any suggestions on what it might be or if they are right? 2012 unlimited sport.