I3 headers o2 sensors

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vmax1209
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Joined: Fri Sep 05, 2025 12:04 am

I3 headers o2 sensors

Post by vmax1209 »

For you guys running headers on 14-18 Silverado/Sierra with Speed Engineering headers, what are you doing for the downstream O2 sensors to keep the CEL light off?
Can the downstream O2 sensors be tuned out via the Intune I3

Is there something we can do with the i3??

Suggestions plz??
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06MonteSS
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Re: I3 headers o2 sensors

Post by 06MonteSS »

Nope, you can't do anything about that... You will have to just live with the CEL/codes or find some other way around it...
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