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    Thread: Cut cats?

    1. 12-02-2019 07:13 AM #1
      How do I check if catalytic converters were removed on vw phaeton?

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    3. Member
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      12-02-2019 07:31 AM #2
      one easy way would be to get a whiff of the exhaust while the car is running. I don't mean stick your face in the exhaust pipe. Standing within 2 feet of the rear of the car should tell you. Since the exhaust gases have quite a different smell, easily detected, without any cats in place.

    4. 12-02-2019 09:17 AM #3
      And with obd computer how to tell?

    5. Member fireside's Avatar
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      12-02-2019 09:25 AM #4
      Quote Originally Posted by Fined View Post
      one easy way would be to get a whiff of the exhaust while the car is running. I don't mean stick your face in the exhaust pipe. Standing within 2 feet of the rear of the car should tell you. Since the exhaust gases have quite a different smell, easily detected, without any cats in place.
      To add to that - just cold start it and stand outside. It will smell like a 60's muscle car (love that smell) and it will be fairly loud for a flagship luxury sedan.

    6. Member fireside's Avatar
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      12-02-2019 09:26 AM #5
      Quote Originally Posted by vwfetus View Post
      And with obd computer how to tell?
      There are (fairly easy) ways to fool these. I used to have a newer (2005) vehicle with deleted cats and I passed plug-in inspection/OBD2 every time, no problem. Luckily the shop never did a visual.

    7. 12-02-2019 12:05 PM #6
      You mean with a hammer?

    8. 12-02-2019 12:08 PM #7
      No hammer needed. No OBDII needed. Cold-start and stand behind the vehicle 30 seconds later. Without a catalyst, it will smell terribly of unburned hydrocarbons.

    9. Senior Member DonL's Avatar
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      12-02-2019 01:30 PM #8
      Quote Originally Posted by vwfetus View Post
      How do I check if catalytic converters were removed on vw phaeton?
      Oh, I dunno...



      Maybe with a


      I mean, if by, "cut," you mean gone, either they're there or they're not.
      Smooremin: "Dont worry. My corset really fills me out ."
      Sold Over Sticker: "The only difference between innuendo and flirting is the desired result. "
      KidL: "Dammit, Chippy! You're making bad choices!"

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      12-02-2019 01:44 PM #9
      Quote Originally Posted by fireside View Post
      There are (fairly easy) ways to fool these. I used to have a newer (2005) vehicle with deleted cats and I passed plug-in inspection/OBD2 every time, no problem. Luckily the shop never did a visual.
      My old motorcycle had resistors installed in the O2 plugs so the ECU would think the O2s were healthy and present.

    11. Member Pnuu's Avatar
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      12-02-2019 02:04 PM #10
      As others mentioned, eyeball check to confirm if they're still physically attached and nose check to confirm if they're working.

      The ECU can be fooled by O2 spacers, resistors, or a tune... And even if you see the cats in place, they could have been hollowed out...

      The only 100% absolute way to confirm would be to run the car on an exhaust gas analyzer to ensure that tailpipe emissions are where they should be. BUT... Ain't nobody got time fo' dat.

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      12-02-2019 02:14 PM #11
      Quote Originally Posted by Fined View Post
      one easy way would be to get a whiff of the exhaust while the car is running. I don't mean stick your face in the exhaust pipe. Standing within 2 feet of the rear of the car should tell you. Since the exhaust gases have quite a different smell, easily detected, without any cats in place.
      I don't even think you need to be that close. Sitting in traffic I can tell if the car in front of my has cats. It's literally noxious if they don't.

    13. Geriatric Member @McMike's Avatar
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      12-02-2019 03:34 PM #12
      Quote Originally Posted by vwfetus View Post
      How do I check if catalytic converters were removed on vw phaeton?
      Hold on, you're not asking so you can steal a pair, are you?

    14. 12-03-2019 02:57 AM #13
      Thinking to buy phaeton...but don't trust Lithuanian scammers in kaunas

      https://autoplius.lt/skelbimai/volks...s-8663621.html

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      12-03-2019 10:21 AM #14
      The sniff test is good but not foolproof. You'll need to park the car in a garage, close the door and start the car.
      Let the car idle for 15-20minutes while taking deep breaths to smell the exhaust. If you become sleepy then you'll know if the car has cats.

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      12-03-2019 10:26 AM #15
      Quote Originally Posted by Baltimoron View Post
      The sniff test is good but not foolproof. You'll need to park the car in a garage, close the door and start the car.
      Let the car idle for 15-20minutes while taking deep breaths to smell the exhaust. If you become sleepy then you'll know if the car has cats.
      Username checks out.

    17. Don't be me. Don't be a 'Rick' Cabin Pics's Avatar
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      12-03-2019 11:44 AM #16
      Is the car meowing?
      Instagram - efrie004

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      12-03-2019 11:57 AM #17
      Quote Originally Posted by Cabin Pics View Post
      Is the car meowing?
      should be fine once it heals


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