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Old 11-29-2017, 05:17 PM   #1
adbarnett5
 
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Catalytic Converter Below Threshold

https://www.google.com/search?q=cata...hrome&ie=UTF-8

So 2 times now I have had this code pulled from my car. The check engine light comes on every now and then, then it goes off, and then comes on. What is the best solution for this?

Car is slightly over 100k times.
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Old 11-29-2017, 05:18 PM   #2
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Replace the cats, or tune it out. That's the only options.
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(exaggerated example) omg they said my car is slow cause its a v6 isn't this surreal

followed by empathetic but also some genuine comments but mostly nut sucking the v6 owner
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Old 11-29-2017, 05:30 PM   #3
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I just looked down there, they look like they are just normal wear and tear from the outside. Don't look burned up or black.

I been reading about it, seems sometimes the sensors just go bad?
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Old 11-29-2017, 08:46 PM   #4
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Quote:
Originally Posted by adbarnett5 View Post
I just looked down there, they look like they are just normal wear and tear from the outside. Don't look burned up or black.

I been reading about it, seems sometimes the sensors just go bad?
Below threshold isn't something you can see. They are no longer functioning to a set standard. You can try changing all the sensors you want, but in my experience it doesn't fix a bad cat. I've worked for GM over 10 years fwiw.
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(exaggerated example) omg they said my car is slow cause its a v6 isn't this surreal

followed by empathetic but also some genuine comments but mostly nut sucking the v6 owner
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Old 11-29-2017, 08:55 PM   #5
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Thanks, yea... they are 700$ a piece to replace, so you can understand my hesitancy.
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Old 11-29-2017, 09:13 PM   #6
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You remember the ATM scam that was going on a while back.... They would put a FAKE face on it and you would input credit card and they would capture...

So.... How about a FAKE OBDII port, you drive up to DEQ, they plug into your car, and your small micro processor provides all the FAKE data to DEQ and you

PASS,

Be simple really, you could just make a recording and play it back....

hum... food for thought.
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Old 11-29-2017, 09:28 PM   #7
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Thanks, yea... they are 700$ a piece to replace, so you can understand my hesitancy.
I get it, it sucks. The 3.6 is awful hard on them. I've changed quite a few.
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(exaggerated example) omg they said my car is slow cause its a v6 isn't this surreal

followed by empathetic but also some genuine comments but mostly nut sucking the v6 owner
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Old 11-30-2017, 06:59 AM   #8
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shop around.....
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Old 11-30-2017, 07:00 AM   #9
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Cats go bad eventually. 100k is not unusual for that. Agree, they are pricey.

Try this
http://www.discountcatalyticconverte...6%20Cyl%203.6L
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Old 11-30-2017, 07:44 AM   #10
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Quote:
Originally Posted by JOURDAN View Post
You remember the ATM scam that was going on a while back.... They would put a FAKE face on it and you would input credit card and they would capture...

So.... How about a FAKE OBDII port, you drive up to DEQ, they plug into your car, and your small micro processor provides all the FAKE data to DEQ and you

PASS,

Be simple really, you could just make a recording and play it back....

hum... food for thought.
Right, u always think that when you go to any car place, but thing is I have had it read by 2 different scanners at 2 points in time. Both threw same code.
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Old 11-30-2017, 09:09 AM   #11
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Quote:
Originally Posted by adbarnett5 View Post
Right, u always think that when you go to any car place, but thing is I have had it read by 2 different scanners at 2 points in time. Both threw same code.
He's suggesting that you try to cheat any emissions testing you might have with a dummy port. Nice thought, but it's not exactly that easy.
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(exaggerated example) omg they said my car is slow cause its a v6 isn't this surreal

followed by empathetic but also some genuine comments but mostly nut sucking the v6 owner
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Old 11-30-2017, 09:25 AM   #12
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Quote:
Originally Posted by JOURDAN View Post
You remember the ATM scam that was going on a while back.... They would put a FAKE face on it and you would input credit card and they would capture...

So.... How about a FAKE OBDII port, you drive up to DEQ, they plug into your car, and your small micro processor provides all the FAKE data to DEQ and you

PASS,

Be simple really, you could just make a recording and play it back....

hum... food for thought.
Not hard with a tune... if all they are doing is pulling the reported codes and failing you for a CEL, you just tell the PCM to not report those codes and you'll pass.
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Old 11-30-2017, 11:56 AM   #13
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I've had the same thing going on with my car since I got a new cat-back exhaust. Best thing I've seen is just to get a tune to ignore the O2 sensors. Cheapest way to do it too
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Old 11-30-2017, 02:04 PM   #14
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Quote:
Originally Posted by JOURDAN View Post
You remember the ATM scam that was going on a while back.... They would put a FAKE face on it and you would input credit card and they would capture...

So.... How about a FAKE OBDII port, you drive up to DEQ, they plug into your car, and your small micro processor provides all the FAKE data to DEQ and you

PASS,

Be simple really, you could just make a recording and play it back....

hum... food for thought.
I think that's a really great idea... actually building and programming one, however, might be tough. But, there would damn sure be a market for it, not only from owners of cars that throw codes for expensive repairs, but also for modified vehicles.
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