New converters Overthreshold fault Bank 2

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02-16-2007, 03:54 PM

tedstruk

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New converters Overthreshold fault Bank 2

What did I do?
what could be causing a fault in a new set of catalytic converters? injector slobber? Bad sensors? bad vag-com? hobbits living in the crankcase?

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02-16-2007, 05:36 PM

~~4Rings::G2 boosted::~~

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I vote for hobbits

What kind of converters were installed? OEM or aftermarket? It's possible that if they were welded in the welder fried one of the post-cat O2 sensors, it happened on my car when I switched cats.

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02-17-2007, 08:42 AM

tedstruk

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Re: I vote for hobbits

They were purchased through autoparts warehouse.com made by DEC.
Is there a way to test the sensors?

What am I looking for in resistance and ohmage?

Bank 1 does not have a problem and I changed both cats. Seems like I would have two faults rather than 1 if it were the cats.

My suspicion is sensors in bank 2.

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02-17-2007, 08:58 PM

4Driver4

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Crappy cats or wrong version of firmware in the ecu. Why did you change the cats?

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02-18-2007, 09:29 AM

tedstruk

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Re: Crappy cats or wrong version of firmware in the ecu. Why did you change the cats?

can you tell me how to test the sensors after I take them out? Can't imagine brand new $250.00 cats that are bad...
Do the sensors go bad when they get hot?
The engine overheated ... cats were tested at the shop as bad, and replaced them.

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