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Mustang Forums
2011-2014 Mustangs
Engine/Tuning
Rear O2 sensors, necessary or not? The definitive answer inside:
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<blockquote data-quote="96gt02" data-source="post: 16157047" data-attributes="member: 169266"><p>Hey Shaun sorry for the super late response to this but there something Ive been wondering for some time regarding this topic of the rear 02s keeping the fronts accurate. So say if one was to leave the rear 02s on with either a stock or aftermarket calibration, and install a O/R mid pipe, Lets just say on a GT500 for reference.... If they wanted to keep the CEL off with the rear 02 sensors on by installing non foulers, would this then negatively affect the way the rear 02s accurately calibrate the fronts since they are being spaced out of the direct exhaust flow to not throw a CEL although they are still functioning?</p></blockquote><p></p>
[QUOTE="96gt02, post: 16157047, member: 169266"] Hey Shaun sorry for the super late response to this but there something Ive been wondering for some time regarding this topic of the rear 02s keeping the fronts accurate. So say if one was to leave the rear 02s on with either a stock or aftermarket calibration, and install a O/R mid pipe, Lets just say on a GT500 for reference.... If they wanted to keep the CEL off with the rear 02 sensors on by installing non foulers, would this then negatively affect the way the rear 02s accurately calibrate the fronts since they are being spaced out of the direct exhaust flow to not throw a CEL although they are still functioning? [/QUOTE]
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2011-2014 Mustangs
Engine/Tuning
Rear O2 sensors, necessary or not? The definitive answer inside:
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