Hi everyone, my truck has been running fine with the codes p0327, p0332 for knock sensors even thought they have been replaced recently. A few days ago, I ran her hard through some mud and trails and developed a p0300 code for random misfire. This seems to affect the idle mostly as now it ‘lopes’. These are the only 3 codes showing, but I checked the voltage on o2 sensors and bank 1 is reading low and jumping up. I have checked for obvious vacuum leaks and the alternator had been replaced recently. Is this a simply a bad o2 sensor or is the low voltage a symptoms of something else. Thanks in advance I just wanted some advice beforehand I go throwing parts into her.
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