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Removed cats

Discussion in 'Performance and Tuning' started by JHart, May 12, 2020.

  1. Jun 3, 2020 at 12:47 PM
    #31
    texasrho83

    texasrho83 DGAF#1

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    Charles
    Conroe TX
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    See build link
    There's one in the manifold and another right before the cat. Upstream is manifold and downstream is the one near the cat
     
  2. Jun 3, 2020 at 12:47 PM
    #32
    Boltsfan6317

    Boltsfan6317 New Member

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    Thank you sir
     
  3. Jun 3, 2020 at 1:57 PM
    #33
    blackdemon_tt

    blackdemon_tt Battery Slayer

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    TRD Sway Bar, Roll covers USA bed cover
    gotta do all 4, unless they did it for you... Usually it'll take 4 cycles for it to come on.. for example mine took 36 miles at first, then it went down to 17 miles before the CEL would come on..

    Edit: Doing all 4 will help the engine go into close loop operation using all 4 O2 sensors for feedback and air / fuel response otherwise you will probably get a 3rd code referencing to Open Loop operation failure to go into Close Loop operation...
     
    Last edited: Jun 3, 2020
  4. Jun 3, 2020 at 3:00 PM
    #34
    Boltsfan6317

    Boltsfan6317 New Member

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    Hey black demon I did eventually get the CEL for P0420 and P0430. At this point until I get the simulator below I'm the pic I will regularly check the codes for anything new. I am also gonna spend a couple bucks and just attempt the non fouler method I may get lucky lol. Screenshot_20200602-235022.jpg
     
  5. Jun 3, 2020 at 3:12 PM
    #35
    blackdemon_tt

    blackdemon_tt Battery Slayer

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    TRD Sway Bar, Roll covers USA bed cover
    Wish you the best of luck.... worst case, you still have 2 other options available...
     
  6. Jun 3, 2020 at 3:25 PM
    #36
    Boltsfan6317

    Boltsfan6317 New Member

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    Thanks for all your help man! The truck is already driving way better and sounds amazing (to me anyway). I won't know about the MPG to I reset battery and drive for a couple days. Once again thanks for all the info have a goodnight!
     
  7. Mar 5, 2022 at 1:36 PM
    #37
    Youalreadyknow

    Youalreadyknow New Member

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    Kohen
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    What in the end worked for you? I’m about to get rid of my cats (2/4 but I need to get rid of the front ones and put the rear ones in their place) and I don’t really know what to expect with all the 02 sensors? If you remove the front cats do you have to mess with the upstream sensors or just downstream
     
  8. May 3, 2022 at 8:47 PM
    #38
    Fish River Tundra

    Fish River Tundra New Member

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    ‘16 Platinum
    What happened?..
     
  9. May 4, 2022 at 8:16 AM
    #39
    Youalreadyknow

    Youalreadyknow New Member

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    If you are roaming about the CEL I current have it but I also did have it before I did this because cats were so clogged. I have been trying to find some 02 sims or fillers but URD stopped selling them I haven’t really seen anymore so I’ve just been ridingwith the CEL
     

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