Thread: P0300 Code
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Old 11-14-2018, 02:48 AM   #2
EVRLET
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Re: P0300 Code

Most people don’t believe that a bad coolant sensor can cause a misfire. However, the computer that sees a “really hot temp” will compensate for what it thinks is a lean condition. I would bet that you have a faulty ECT sensor. Let us know if that’s the case.
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