Pontiac Sunfire P Codes (Powertrain) P0300 - P0399 P0300

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P0300 Confustion

1998 PONTIAC SUNFIRE
I Have A 03 Pontiac Sunfire, Pulled An P0300 Code (random Misfire) And A Bad Cat Code. I Replaced The Upstream O2 Sensor And The Cat Code...
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Asked by dumenuf2talk2u

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