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1-19 of 34 Results
  1. JK Technical Discussion
    Hey yall, I got a P0430 code a couple of days ago and wanted to see if anyone had ideas as to a possible fix. I have an 08 JKU with 115k and have recently (Dec 21) had a train of problems and I'm hoping this isn't a continuation of that. Back in Dec, I had 2 misfire problems, both fixed after...
  2. TJ Technical Discussion
    I am looking to replace the whole exhaust system on my 97 2.5 TJ, since it's really old. I am in the EU and cannot find any catalytic converters for model year 96-99 that are road legal, I find some who are only EPA compliant (so no California either). I found a catalytic convertor that is...
  3. JL Hybrid and EV Forum
    Hi all, I just got my Jeep Wrangler Rubicon 4xe. Just womdering where is the catalytic converter located at? I tried to bring it to findlay custom but they said they cant find it. I was going to get a cover because of the theft issue we are having here in my state. Would really appreciate if...
  4. TJ Technical Discussion
    Hello all. I am new to TJ (and Jeep) forums so I hope I'm posting in the right place. I recently had P0306 engine code (later found out one hot morning while firing up the Jeep. Check engine was flashing. I drove approximately 3 miles to have the code read (P0306). I then drove another...
  5. TJ General Discussion
    After being pulled over for an expired inspection sticker, I took my TJ to the shop to get it inspected. It is an 05 that I have owned for 5 years and it has passed every year. It failed this year, for emissions reasons (picture of report attached). The Jeep is a 2005, 4.0L 6 speed manual X...
  6. TJ Technical Discussion
    This is my first post and I am trying to determine what the possible issues are with the 2005 Jeep Wrangler X. It has the standard 4.0L automatic with stock gears. It has a 2.5" lift kit and 33s. I had the transmission replaced about 6 months ago with about 150k on that original trans...
  7. TJ Technical Discussion
    My CEL (check engine light) has come on with the following code: P0421 Bank 1, which indicates warm up catalyst less than efficient, indicating a bad catalytic converter. Additionally there was a loss of power this weekend for a bit after a stop and cool down of the engine. Eventually the...
  8. TJ Technical Discussion
    2006 Rubicon, 47000 miles, 6 cyl.- 4.0, California Emissions with 4 - O2 Sensors. The "check engine" light came on and PO421 (warm up catalyst efficiency below (bank 1) was noted. I replaced ALL four oxygen sensors, cleared the code and am still receiving error code PO421. This is a ONE owner...
  9. TJ General Discussion
    What's the difference between a CARB vs. NON CARB compliant catalytic converter system? I have an 06 X with 4.0. I'm considering replacing my cat system with Magnaflow system. There are two offerings, part number 93649(non-carb compliant) and 458027 (carb compliant). Does the jeep PCM/ECM know...
  10. TJ Technical Discussion
    So I am replacing my exhaust system from the exhaust header back today, and just have a few questions regarding what bolts/nuts/hardware to use. I have tried researching as much as I can but I can't seem to find many answers that I am looking for. I am also new when it comes to the exhaust...
  11. TJ General Discussion
    I am working on taking the catalytic converter out of my 2006 Jeep Wrangler TJ SE (2.4L) and got the top bolts out, but am struggling a lot with the back two bolts. Anybody have advice on how to get these out because I am about ready to give up on it. I attached a picture to clarify which bolts...
  12. TJ Technical Discussion
    I am installing a new catalytic converter on my 2006 Wrangler TJ SE (2.4L engine) and just wanted to see if anyone knows whether or not this manufacturer is a good one or if the new cat will blow out again within a couple years. I found it on carparts.com so a usually good website...
  13. TJ Technical Discussion
    A few months back, I had a check engine light come on on my 05 TJ, so as always, I went straight to AutoZone and found out it was a code for bank 1 sensor 1. I thought that was weird because as I'm sure you all know, the O2 sensors in our TJs leave much to be desired. Regardless, I have already...
  14. TJ Technical Discussion
    I've got a 2003 Wrangler X and I need to replace all 3 catalytic converters. My emissions sticker under the hood says the vehicle conforms to U.S. EPA NLEV regulations to 2003 model year new LEV light-duty trucks and California regulations. I live in Massachusetts and I don't plan on moving to...
  15. YJ Technical Discussion
    I am in the process of building my own stainless steel exhaust for my 90 4.2, I have done the Nutter Bypass, Team Rush Distributor upgrade and will be procuring an MC 2150 carb soon if this info helps. I also live in a region of Alaska where the pre-OBD2 vehicles are exempt to emissions laws. I...
  16. TJ General Discussion
    I'm replacing it all. I'm getting Banks Revolver Headers and Monster Exhaust. I'm trying to figure what the best buy is for the catalytic converter. This is what I am leaning towards: Magnaflow Or Flowmaster Does anyone have any recommendations? This is my first post here, so let me know...
  17. TJ Technical Discussion
    I am going to be installing a new cat later today. I have an 01 4.0 with the dual y pipe cat and the 4 02 sensors. I know I need a new gasket at the bottom of the new cat but do i need any kind of gasket for the two top connections?
  18. TJ Technical Discussion
    Howdy Y'all I need help figuring out why my engine light keeps going on. I only have 40k original miles. It doesn't run funny, or problem starting or leaking any fluids or anything. I keep disconnecting battery and the light stays off for a week then comes back on. I was wondering if it is the...
  19. TJ Technical Discussion
    My TJ threw a P0420 code a while back, and my uncle, who is an experienced mechanic, says that I need a new cat and that it will cost me around $1000 or more, including labor. He told his buddy about it, who is also a mechanic, and he suggested this "chemical" that they pour into the gas tank...
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