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  1. #1
    Nehemiah 5:19
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    Default What are the symptoms of a blocked catalytic converter?

    I am suspecting my rpm bogging and warm up idle dropping is being caused by it cause everything else checks out fine.
    Habbakuk 2:2-3

  2. #2
    Hypermilin' that
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    Basically you will hit a brick wall of flow if your catalytic convertor is clogged.

    Does your car have power at 4500-5500rpm? because that's about where you have peak power and the car is forcing out the most air. If you had a clogged catalytic convertor, your engine would never make it up there!
    '96 200sx SE-R, 5speed, 220kmi - stock, with too many new OEM parts to list.. going for creampuff status

  3. #3
    B13
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    It will also get hot enough to catch your car on fire at times.

  4. #4
    <(*.*)>
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    just gut it and take the metal inside to the junkyard. they threw me 15$ for mine
    oh nomz nomz nomz~~

  5. #5
    THE SE- RLOGIST
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    Location: Boston Ma
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    Quote Originally Posted by Pretty White View Post
    I am suspecting my rpm bogging and warm up idle dropping is being caused by it cause everything else checks out fine.
    One symptom will be a huge power loss. Like your car lost 25 hp.
    The car will also sound like it's running under water.
    My idle was fine honestly. it was only noticeable during driving matter of fact I thought my Maf **** the bed.
    COMING FOR THAT NUMBER 8 SPOT!!!!!!

  6. #6
    Nehemiah 5:19
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    OK, I am making it past 4500. It bogs around those RPM's intermittently. It could be the beginning. I just do not want to throw parts at it. I want a direct hit. All the sensors check out fine. Nothing looks loose.
    Habbakuk 2:2-3

  7. #7
    Vadministrator
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    Check for vacuum leaks. Test your MAF voltage. Check spark plugs, check O2 sensor.

    Those are some of the basics.
    00 G20t KH3- Loller Rocker + GT28 + 6 Speed
    05 Legacy GT - 5MT + Invidia Up + Downpipe
    04 Forester XT - 5MT + STI Up Pipe
    03 Spec V - Parting out Now

  8. #8
    My Vtec Gives Hugs mmmbah
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    Checking vacuum can hint of a clogged cat convertor. If vacuum starts to drop or reaches close to 0, without being WOT it can be a clogged cat.
    BRZ Limited Dark Gray Metalllic. Oh yea.

  9. #9
    Vadministrator
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    Sorry for the OT Pretty White, I will separate this thread and move the Cat parts to a new thread when I get a chance.

    EDIT: New Thread
    Last edited by Vadim; 06-04-10 at 09:48 AM.
    00 G20t KH3- Loller Rocker + GT28 + 6 Speed
    05 Legacy GT - 5MT + Invidia Up + Downpipe
    04 Forester XT - 5MT + STI Up Pipe
    03 Spec V - Parting out Now

  10. #10
    F0rums member since 04'
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    Cat also turns red hot and smells like it's burning.
    True engine performance comes from Forced Induction.

    Being humble, and keeps it Real. RESPECT

    Jose C.

  11. #11
    Hypermilin' that
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    Quote Originally Posted by Vadim View Post
    Sorry for the OT Pretty White, I will separate this thread and move the Cat parts to a new thread when I get a chance.

    EDIT: New Thread
    Lovely
    '96 200sx SE-R, 5speed, 220kmi - stock, with too many new OEM parts to list.. going for creampuff status

 

 

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