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+1 on this, I'm having a hell of a time finding a replacement.

Sorry for reviving a dead thread here. but I noticed that you originally had the Polk 5.25" and are now rocking the 6.5" in this thread. Was gonna go with the 5.25 but now I am getting second thoughts since you switched em out

UPDATE: Good news! Turns out it actually was the coil pack. Swapped In my Buddys coil pack and the jeep ran mint. I will be doing a quick little how to post on the repair and the symptoms

Yup, gotta be running too rich in bank 1, what could it be? I’ve put new plugs, and 3/4 o2s are new. The only thing that’s left is coil pack and injectors? I’m going to swap my buddy’s coil pack in to test the coil pack.

Update: I had to chop the pipe to remove the Y Pre cats and unfortunately it’s not them, the insides of the catalytic converters look fine. so I guess bank 1 was running rich as the cat was red hot. Guess it’s back to the drawing board. Any ideas?

Thats good to hear Jerry, Did they change anything with the exhaust system in 04-06 compared to 02? I can't find a good deal on 02 cats

Yea I was just gonna straight pipe but I already have new NGK O2 sensors and I would like to finally get ride of my check engine light

Thank you sir, you think the 04-06 cats will work for my 02

Thats good news as I was stumped what else to check. Im trying to find a pre cat kit for my 2002 TJ. I am only finding ones that fit 04-06, are they interchangeable?

You think it is possible that a clogged cat could cause my engine to misfire, it still is quite shaky but I'm not getting a code other than the O2 sensor code

Gotcha, Yes my sensor I bought is NGK as that's what I read around on here for the only good replacement. I have a flow master muffler and I like it, Ill check out their cats.

Hey Guys, So recently I was on my way home and at a stoplight had a misfire in cylinder 2, and my exhaust sounded funny and fluttery, I was like 8 minutes away so I decided to drive it home and coast down hill. Long story short, I replaced the spark plugs, still had issues. I checked my coil...

Hey guys Went to put on a new crankshaft sensor. Noticed this plastic rubbery piece that the old one had around it that covered the hole in the bell was all melted and warped. Curious what’s it called and if I can reuse the old warped one? Thanks

I replaced the serpentine belt and it went away, I also cleaned all the pulleys before install

Hey guys So I just got back from a month long trip and drove my tj for around 30 minutes, started it back up and it made a terrible whistling/whining echo noise at idle. It would go away every time I gave it some throttle. ive heard about the OPDA issues in the 04-06, but I have a 02 so I’m a...

The Jeep has basically zero rust, I was just wondering how bad redlining and aggressive shifting is on a motor

That’s what I was thinking, maybe LS down the road when I win the lottery

I have my own TJ already which has a pretty solid frame, few surface rust spots but nothing of concern at all. The LJR has basically no rust

Gotcha, basically no rust on it at all. Just concerned about the engine. Like sitting on the redline for a solid while to do donuts and stuff lol.

Appreciate it, it’s actually super clean, basically no rust, and looks brand new, just the motor is the only thing I’m worried about