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Old 01-01-2016, 09:54 PM   #1
kbrett11
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Fried catalytic converter

Title says it all. If I run the car like it is am I likely to see problems? Should I just get a new downpipe asap? Cts turbo has a sale right now for a catless downpipe $339
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Old 01-02-2016, 07:01 PM   #2
nevekd128
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i doubt your cats are fried.
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Old 01-02-2016, 07:09 PM   #3
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i doubt your cats are fried.
I'm Apr stage 1 with intake on a stock exhaust and am always on the gas. Kinda drive it like I stole it, but within reason obviously. the guy who owned the vehicle prior to me had it on a lease and blew the clutch and the coil packs. I just got a cel and ran the code. It's a p0420. Catylist efficiency below threshold i believe. Car hesitates slightly under WOT and feels "backed up" if that makes sense
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Old 01-02-2016, 07:09 PM   #4
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W̶h̶a̶t̶ ̶e̶n̶g̶i̶n̶e̶ ̶c̶o̶d̶e̶s̶ ̶a̶r̶e̶ ̶y̶o̶u̶ ̶g̶e̶t̶t̶i̶n̶g̶?̶ NVM I see you just posted it.

PS: Is there an easy way I can do strikethrough text in replies?
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Old 01-02-2016, 07:11 PM   #5
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What engine codes are you getting?
P0420 Car hesitates for a brief second under WOT. Seems to be "backed up" like it's not pushing the power thru. The engine is running hard but not going as fast as it should. My best description
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Old 01-02-2016, 07:16 PM   #6
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How many miles do you have on it?
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Old 01-02-2016, 07:19 PM   #7
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How many miles do you have on it?
About to clock 70,000. I've kept up with all maintenance and oil changes at 5k. Just changed to r8 coil packs and ngk bk7 plugs and replaced o2 bank1 sensor1 (cbfa)
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Old 01-02-2016, 07:30 PM   #8
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Going catless won't remove the code, just resolve the symptoms. Maybe the second O2 sensor needs replaced.

I would try clearing the code first and see if it comes up again.
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Old 01-02-2016, 07:33 PM   #9
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Going catless won't remove the code, just resolve the symptoms. Maybe the second O2 sensor needs replaced.

I would try clearing the code first and see if it comes up again.
I actually just cleared codes last week. I was having mad hesitation even under light throttle. I replaced packs and plucks and front o2 and it runs great now. Cleared codes after and started boosting to make sure all is well and now I have this code. I don't care about the code itself, it's the symptoms and how the car runs. If there is a problem with the performance of the car I want to fix it.
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Old 01-02-2016, 08:45 PM   #10
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Just knock the cat out....no reason to buy a catless dp. Did it to my billy boat dp last year.
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Old 01-02-2016, 08:51 PM   #11
kbrett11
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Just knock the cat out....no reason to buy a catless dp. Did it to my billy boat dp last year.
Well I plan on going stage 2 and eventually ko4 and I don't have a dp yet. I figure now is a good excuse to get the downpipe I want while it's on sale and at a time I could justify spending the $$ if I did knock the cat out of the stock exhaust, how would I go about doing that?
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Old 01-04-2016, 02:25 AM   #12
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carbon cleaning for hesitation and clean you sensors
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Old 01-04-2016, 02:33 AM   #13
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Hmm i'm surprised to see a P0420 on a stock downpipe.
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Old 01-04-2016, 02:54 AM   #14
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If your cat is clogged vw has a 8 year/80k warranty on the emission components. I highly doubt your stock cat is clogged after 70k. My moneys on a bad o2 sensor.
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