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  1. CJ2LJ

    Overheating at speeds above 100km

    Dealing with the same problem. Did the new water pump fix the +230 degrees on the highway? Thanks
  2. CJ2LJ

    The Official Jeep Wrangler TJ Oxygen (O2) Sensor Thread

    I just wanted to reply to this after replacing the catalytic converter AGIAN. I called Pacesetter. I have been in contact with them since I installed it. I had done a few test for them. They finally agreed to send me a new one under warranty. The flanges lined up perfectly this time and I...
  3. CJ2LJ

    The Official Jeep Wrangler TJ Oxygen (O2) Sensor Thread

    Hello everyone. I have been reading this forum for a long time. Thanks for all the posts. It's help me so many times. This is my first post. I have been chasing a P0431 and now P0421 code for about a year. I have replaced O2 sensors with NTK sensors (All 4) and new pacesetter cat set...