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      crownvic31 replied to the thread Bad o2 or bad cat?.
      So i did a on board monitor and this showed up. Im guessing that thisnis a bad cat?
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      crownvic31 replied to the thread Bad o2 or bad cat?.
      Ok so this is a reading of the o2s. 1st one and 3rd are front o2s. 2nd and last are rear. This is running. Those rear o2 sensors have to...
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      crownvic31 replied to the thread Bad o2 or bad cat?.
      Also, Ive done several smoke test as well as my mechanic shop and I have zero leak. Can it be possible that my cats are bad causing some...
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      crownvic31 replied to the thread Bad o2 or bad cat?.
      Guys I am at lost here. Its been a few weeks since I updated but I have no other solutions. So truck is still doing the same. Ive...
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      crownvic31 replied to the thread 2007 Yukon Denali XL AWD.
      https://www.roughcountry.com/product/configurable/gm-suspension-lift-kit-281c#256=454 I believe thats the kit you will need to make...
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      crownvic31 replied to the thread Bad o2 or bad cat?.
      Btw i just want to correct something on the cats that i am using. The ones i am using are these...
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      crownvic31 replied to the thread Bad o2 or bad cat?.
      Sorry for all the post guys. Im just trying to educate myself here and just ask for advice and opinions. So in the email sent by...
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      crownvic31 replied to the thread Bad o2 or bad cat?.
      Here are some pics of how my exhaust is set up.
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      crownvic31 replied to the thread Bad o2 or bad cat?.
      Not sure if i mentioned this but i have long tube headers and high flow spun magnaflow cats which werent that expensive at 150 each...
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      crownvic31 replied to the thread Bad o2 or bad cat?.
      Does this mean i should be looking into my rear o2 sensors and/or cats?
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      crownvic31 replied to the thread Bad o2 or bad cat?.
      Im this folloing video i am trying to figure out the rear o2 sensors. To my understanding, they are there to tell is the cats are good...
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      crownvic31 replied to the thread Bad o2 or bad cat?.
      Hello guys So Just received an email from blackbearperformance in reference to the data log they received and my issue. His reply in...
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      crownvic31 replied to the thread Bad o2 or bad cat?.
      I will run another smoke test later today. My ladt smoke test i used the hose off the brake booster and sealed the end of the intake...
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      crownvic31 replied to the thread Bad o2 or bad cat?.
      Its just interesting how we go from running fine to this by changing the ******** positive battery cable. Cant wait for blackbear to...
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      crownvic31 replied to the thread Bad o2 or bad cat?.
      All battery cables have been changed.
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