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Well for an update, I plugged in my oft this time and it picked up the codes, p015a, p015b. Both are what I believe to be concerns with the secondary 02 sensor. Had no issues at all with catless headers until the temperature started dropping up here in Canada. Since the car runs rich longer due to the negative temps. I'm thinking it might be fouling the 02 sensor. Does this make sense?
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2013 Scion Frs AT in Whiteout, Borla UEL header, Greddy SP Elite AxleBack. Kraftwerks C38 Supercharger tuned by Moto East and 2 kid seats in the back.  |