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catalyst monitor

  1. R

    Exhaust issues, please help

    Hello everyone, I’m a new member to the forum. I have a 2000 Explorer XLT ohv 4.0 . I have 1 week left to renew my plates and I’ve currently got gutless cats . I went and bought two off of a 98 yesterday but the system was different from mine. I had to purchase them because it’s the best option...
  2. B

    Help Resetting Catalyst Monitor

    Edit: Never mind - my mechanic just told me that here in GA a '97 can have up to two monitors not complete and still pass!! I just got a P0430 code (Catalyst Over Threshold); this happens every year or two and I usually just reset it using my code reader and everything is fine. However, this...
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