04 RX8. After deflooding she started but backfired now codes U0101, C, EV, 2A, O

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After I deflooded the car, i took her for a drive then after 5 minutes driving fine, she backfired and then she now she can barely go 25 mph! I hooked it up to a code reader and she shows: U0101 and C, EV, 2A, O flashes! Help! Lol