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2012 Mustang Gt p2270 and p2272 help
Catless long tubes with H pipe (see photo) No downstream O2 sensors installed. Still getting p2270 and p2272 Downstream sensors stuck/lean biased although I've been assured by the Lund tuning that the wideband upstreams alone will account for no downstream sensors and tuning sensors out is...- Fordrcr943
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- Forum: 2011+ Mustang GT 5.0L Tech
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