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  • New O2 sensor with new cat?

    I have a bad catalytic convertor and I am getting ready to replace it with a high flow one (as well as a texas rumbler cat back).

    Since I have been driving around with a bad cat for a little while should I change the o2 sensor that is after the cat? I do have a code that was thrown a few days ago which I assume is a exhaust code from the bad-cat.
    SLP CAI, K&N, Whisper Lid, 180* thermo, manual fan switch, 3.42 gears, Auburn Pro LSD, Wester\'s PCM Tuning, TSP Rumbler, High Flow Cat. Best Time: 9.909@71.58 (1/8 mile)

  • #2
    well i wouldn't just assume, go to autozone to have it checked. and yes, you should just go ahead and get a simulator w/ the high flow cat. and if you dont have inspections like here in OK. i would just do a straight pipe or cut-out would go good there too
    2000 3.8 A4 Pewter Camaro

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    • #3
      Yeah, I had planned on having the guy that installs my exhaust check the code for me to make sure.

      I have already planned on buying a o2 simulator. I guess it wouldn't make sense to buy a new o2 sensor and then an o2 simulator since the simulator will take care of a bad signal from the o2 sensor.

      In hindsight I guess it was a stupid question [img]smile.gif[/img]

      We don't have emissions testing here in NE but I have already bought the high flow cat and anyway I want to keep the car legal because it will probably be traded in for something else eventually.
      SLP CAI, K&N, Whisper Lid, 180* thermo, manual fan switch, 3.42 gears, Auburn Pro LSD, Wester\'s PCM Tuning, TSP Rumbler, High Flow Cat. Best Time: 9.909@71.58 (1/8 mile)

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      • #4
        yeah, i bought a high floe cat also and then when i started putting everything together i was like, why did i do that. but i bought it before i found out about the sensors coldnt handle it.
        2000 3.8 A4 Pewter Camaro

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        • #5
          I have all my o2 sensers they work just fine with my highflow cat lol.
          00\' firebird v6 5spd<br />201rwhp ---- 230 rwtq<br />\"Everyday I grow stronger...and further from you.\"<br />WARNING: Do not take any of my comments seriously unless they are technical in nature and then only at your own risk

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