WB Tuning And Damaged Cats

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Oct 7, 2005 | 04:21 AM

Predator

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Joined: Jun 2002

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From: Las Vegas, NV

WB Tuning And Damaged Cats

I've been running my car with COT turned off, and AIR system removed. After some time, I started throwing rear O2 sensor DTCs (which I turned off with Edit). I know I could have bad O2 sensors, but it seems logical that the cats burned up, especially with COT turned off, and looking at my Random Tech hi-flo cats, they have turned a black color from the silver they were originally. Assuming the cats did burn up, does this mean that if I put a WB sensor, in the rear O2 position, the cats will not alter the A/F reading?

Also, does anyone know if hi-flo cats alter WB readings less than regular stock cats?

I know there's not much, if any, factual data about my questions, but feel feel to offer your opinion, and of course, any facts are always welcome.

Thanks.