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Originally Posted by FRSBRZGT86FAN
Both of my o2 sensors are in position, as well as me not having flex fuel and just running an e85 tune from shiv
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Do you have any O2 spacers?
And forgive my ignorance but there is one O2 sensor before the cat in the header and one after it, and that's it, right?
So much confiicting information, I don't know what to believe. I guess I'll just have to go full catless, flash the OFT OTS Stage 2 tune, and see if it shows emissions readiness.