Brenspeed Tune and Emissions
#11
Its possible. Its also possible you are getting readings from your actual 02 sensors. The rear ones after the cats are actually called/considered 02 monitors. just all words I guess, lol. Pre, post, bank 1 bank 2. Upstream/downstream, call it what ya like.
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mrappe
V6 (1994-2004) Mustangs
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09-26-2015 10:16 AM