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P0300 Jeep Wrangler code definition P0300 is a kind of OBDII Diagnostic PPowertrain Diagnostic Trouble Code for Jeep Wrangler P0300 Jeep Wrangler is described as Oxygen Sensor Circuit No Activity Detected (Bank 1, Sensor 1) This means there's a problem in the front oxygen sensor on Bank 1, as the O2 sensor is inactive If the car doesn't start, they will proceed Jeep Code P0300 Definition Random/Multiple cylinder misfire detected Commonly associated with Jeep codes P0301, P0302, P0303, P0304, P0305, P0306, P0307, P0308 What Does Jeep P0300 Mean? 14 jeep wrangler 36 Awrench said ↑ thats a common code P0302 a misfire could be either ignition, fuel, mechanical 1st counter intuitive #2 cylinder is driver side front plug Were you on correct cylinder? P0303 Code Will Not Go Away Looking For Suggestions Jk Forum Com The Top Destination For Jeep Jk And Jl Wrangler News Rumors And Discussion P0300 jeep wrangler code