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Old 11-23-2010, 04:32 PM
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"Rejuvenating" a Catalytic Converter

I'm getting a trouble code P0420 on a Toyota with over 250k miles. The code is Catalyst System Efficiency Below Threshold (Bank 1).
There's no trouble code that says that the O2 sensor(s) are bad, so right now I'm assuming the converter isn't working properly. I intend to buy a code scanner so I can hopefully see the O2 signals.

My question is: Is there a way to "rejuvenate" the converter?
Since the car has a lot of miles on it, and it does burn some oil,
I'm thinking about trying to trickle in water while the engine is running to steam clean the converter.
Do you think this will clean out some of the contaminates in the converter?
i don't think it will hurt it.
Thanks.

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Old 11-23-2010, 05:05 PM
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I don't think that will work. I had the same problem for years with my Grand Marquis. The only thing that worked to get rid of hat code was to replace the cat and the O2 sensors as well.
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Old 11-23-2010, 05:11 PM
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Originally Posted by Coodeville
I don't think that will work. I had the same problem for years with my Grand Marquis. The only thing that worked to get rid of hat code was to replace the cat and the O2 sensors as well.
X2 What he said. But i guess you can give it a shot just let us know if you pull it off.


Cole
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Old 11-24-2010, 05:38 PM
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i`m a senior tech and would normally laugh off what i`m about to say....but, theres a product called catyl cleen or some spelling similar that i`ve used with some good results. i `d say in most 420 codes theres a 50/50 chance this will work. thats actually really, realy good odds if you think like me. anyways you might try googleing it.
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Old 11-24-2010, 05:42 PM
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Originally Posted by ballsout1
i`m a senior tech and would normally laugh off what i`m about to say....but, theres a product called catyl cleen or some spelling similar that i`ve used with some good results. i `d say in most 420 codes theres a 50/50 chance this will work. thats actually really, realy good odds if you think like me. anyways you might try googleing it.
Alway's learning, Man i just love this stuff.


Cole
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Old 11-24-2010, 06:49 PM
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Quote:
Originally Posted by ballsout1
i`m a senior tech and would normally laugh off what i`m about to say....but, theres a product called catyl cleen or some spelling similar that i`ve used with some good results. i `d say in most 420 codes theres a 50/50 chance this will work. thats actually really, realy good odds if you think like me. anyways you might try googleing it.
Is this the stuff that says on the bottle, "Guaranteed to make your car pass emissions testing or your money back" ?
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