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348 Catalytic converters

Discussion in 'Technical Q&A' started by vincent355, Mar 9, 2004.

  1. vincent355

    vincent355 F1 Veteran
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    Apr 8, 2003
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    Vincent
    there are two different size catalitic converters for US model 348's. Part #134001 and #134002. Which side does the larger one go on?

    i'm trying to trouble shoot a resonnance I'm getting at certain RPM's ever since the cats were put back (Car had test pipes previously), and before I take the whole thing apart to just check the status of the cats I want to verify that they are each ontheir corresponding side.

    thanks,

    vincent.
     
  2. davey_jones

    davey_jones Formula Junior

    Sep 28, 2002
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    Dave
    Why exactly are you putting the cats back on?
    Removal of cats has actually eliminated problems for me..?

    dave
     
  3. vincent355

    vincent355 F1 Veteran
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    i put the cats back on to pass CA. smog.

    Vincent.
     
  4. Ksullender

    Ksullender Formula Junior

    Sep 3, 2003
    883
    USA
    I just checked mine (1990 ts) and they both visually looked the same. I then took a tape measure and they are the same. I'm not sure what that means for you/me?
     
  5. vincent355

    vincent355 F1 Veteran
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    I'm not sure either. Mine is a 92 and the cats are definitely two different sizes, with the passenger side being larger.

    Anybody else?

    Vincent.
     
  6. gredinger

    gredinger Karting

    Feb 19, 2004
    50
    Sweden
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    Peter Gredinger
    I have just had my cats repaired.
    My car is a 1993 TS and the cats are identical.

    Peter
     
  7. ernie

    ernie Two Time F1 World Champ
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    Nov 19, 2001
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    The Bad Guy
    If you think about it. I'll bet the previous owner replaced just one cat. At over $1000 from the dealer, they probably didn't wanna spend any more money. That's just my guess.
     
  8. Noelrp

    Noelrp Formula Junior

    Aug 30, 2001
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    Noel
    Vincent,

    My CAT converters are the same sizes too.

    BTW, I just had my smog check last month. I was surprised that it passed with 1 damaged CAT (catalyst gone).

    Good luck!

    -n
     
  9. vincent355

    vincent355 F1 Veteran
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    Looks like I'm putting the test pipes back on then.

    Vincent.
     
  10. davey_jones

    davey_jones Formula Junior

    Sep 28, 2002
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    Dave
    mine are identical in size/shape also..
     
  11. Steve

    Steve Formula Junior

    Nov 1, 2003
    901
    Seattle, WA
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    Steve Jenkins
    My 348 passes WA State emissions with flying colors sans cats. Have you tried it without them?
     
  12. vincent355

    vincent355 F1 Veteran
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    i have not. Are the WA and CA requirements the same?


    Vincent.
     
  13. redcar1

    redcar1 Formula Junior
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    Nov 3, 2003
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    Mark
    I just put aftermarket (randomtechnology) cats on mine and they are smaller than the factory ones. I agree that if yours are different sizes, someone likely replaced one.

    I had test pipes and never took a smog test, but I can tell you mine had a bad overrich stink with the test pipes that went away as soon as I put the cats on. The sound is not quite as "sharp", and it might not rev quite as quickly, but it feels just as strong, and you can drive it without stinking up your clothes.

    Mark
     
  14. Whatever

    Whatever Formula Junior

    Sep 6, 2002
    346
    Highland Village, TX
    Full Name:
    Dan Marlett
    I've replaced mine for ($325ea). Both sides are the same size, however, they are different from side to side.
     
  15. Ksullender

    Ksullender Formula Junior

    Sep 3, 2003
    883
    USA
    Dan, where did you get your cats from?
     
  16. davey_jones

    davey_jones Formula Junior

    Sep 28, 2002
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    Dave
    Humane society is best place to start...

    sorry... couldn't resist LOL :)
     

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