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<blockquote data-quote="Riddick" data-source="post: 15508899" data-attributes="member: 143188"><p>I believe what hes trying to say is you can have the rear o2s turned on and not throw a check engine light, at least on the coyote platforms. Tuners are able to change the settings to where it will not throw a check engine light. Also, like as he stated its critical to leave them on since the rear o2s are used to calibrate the front widebands. If you have your rears turned off over time they will drift and not be calibrated correctly. </p><p></p><p>There was a post on here not to long ago from Shaun over at AED that explained this process better. I am not sure if the v6 cars have the same o2 sensors as the GT, if they do you may want to find another tuner.....</p></blockquote><p></p>
[QUOTE="Riddick, post: 15508899, member: 143188"] I believe what hes trying to say is you can have the rear o2s turned on and not throw a check engine light, at least on the coyote platforms. Tuners are able to change the settings to where it will not throw a check engine light. Also, like as he stated its critical to leave them on since the rear o2s are used to calibrate the front widebands. If you have your rears turned off over time they will drift and not be calibrated correctly. There was a post on here not to long ago from Shaun over at AED that explained this process better. I am not sure if the v6 cars have the same o2 sensors as the GT, if they do you may want to find another tuner..... [/QUOTE]
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