Cat delete and O2 sensor work around?

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HeliMatt

TYF Newbie
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Jan 8, 2017
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Hi all,
I have a 96' yukon and I'm thinking about deleting the catalytic converters with a custom exhaust. My question is has anyone done a cat delete, will that affect the upstream O2 sensors, and is there a way to work around the downstream O2 sensors throwing a code? I've seen the spark plug anti-fouler method. Has anyone tried that and does that work, or is it better to tune them out?
 

Eman85

Full Access Member
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Apr 18, 2021
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My cats are long gone on my 98 K2500 and the O2 sensors are all still there, no codes ever set. Didn't do anything to it, your results may vary.
 

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